AG Mega Gengar [QC 2/2] [GP 2/2]

[OVERVIEW]
Mega Gengar is the preeminent trapper in Anything Goes and, as such, cannot be ignored when building and playing in the metagame. Its incredible versatility and plethora of utility options give it the unique ability to support essentially all relevant sweepers in the metagame by removing their checks, such as Arceus-Fairy for Zygarde and Marshadow. Its typing and excellent base 130 Speed in tandem with its base 170 Special Attack allow it to eliminate several notable threats, such as non-Choice Scarf Mega Rayquaza, Ultra Necrozma, and Arceus formes. It also has an immunity to Extreme Speed, blocks Rapid Spin, and easily switches into Toxic-reliant walls like Lugia and Skarmory. An immediate offensive presence and a more consistent performance against offense serve to distinguish Mega Gengar from the metagame's other prominent trapper in Gothitelle. A movepool that includes a wide array of utility options allows Mega Gengar to bypass many of its would-be checks. However, its extreme fragility and lack of reliable recovery mean that Mega Gengar can sometimes find difficulty coming into play versus foes like support Arceus formes, Ferrothorn, and Celesteela, is often reliant on prediction, and is much more vulnerable to being Pursuit trapped when compared to Gothitelle. There arises a question of opportunity cost in the use of Mega Gengar, as it prevents one from using other Mega Evolutions such as Mega Rayquaza in particular, and therefore it cannot fit into every build. Lastly, Mega Gengar's prevalence in Anything Goes means that certain otherwise trappable Pokemon sometimes elect to run coverage to handle it, while defensive teams tend to equip their passive walls with Shed Shell or use Pursuit trappers to hinder its effectiveness.

[SET]
name: Offensive Trapper
move 1: Shadow Ball
move 2: Sludge Wave
move 3: Taunt / Focus Blast
move 4: Substitute / Taunt / Destiny Bond
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Shadow Ball eliminates Ultra Necrozma and deals significant damage to the likes of Necrozma-DM, Lugia, and Primal Groudon. Sludge Wave eliminates Fairy-types, most notably Arceus-Fairy and Xerneas, and is Mega Gengar's strongest STAB move. Taunt prevents Mega Gengar from being used as setup fodder, allows it to have a positive matchup against passive Pokemon, and prevents it from being phazed by Roar or Whirlwind from Pokemon like Lugia. It is also required to successfully eliminate the common Arceus-Poison. Substitute allows Mega Gengar to scout the opponent's initial switch-in to it on the turn it Mega Evolves and forces Choice item users to lock into a move. It also allows Mega Gengar to escape from Pursuit users, play around a weakened Yveltal's Sucker Punch, and avoid debilitating status such as Nuzzle from Smeargle. Focus Blast removes Tyranitar and improves the matchup against Extreme Killer Arceus, Arceus-Dark, and Ferrothorn. Destiny Bond can allow for a trade with a problematic Pokemon and is generally easy to utilize owing to Mega Gengar's frailty, though the move is somewhat reliant on prediction. It is also Mega Gengar's best tool against would-be checks such as Yveltal and Primal Kyogre that it cannot otherwise threaten. Finally, it allows Mega Gengar to situationally serve as a check to certain setup sweepers such as Calm Mind Arceus formes.

Set Details
========
Maximum Speed investment with a Timid nature allows Mega Gengar to outspeed Ultra Necrozma and anything slower. Maximum Special Attack investment in tandem with a potent STAB combination in Shadow Ball and Sludge Wave allows it to OHKO threats like Ultra Necrozma and unboosted Xerneas while dealing massive damage to support Arceus-Fairy. Likewise, support Tyranitar is always OHKOed by Focus Blast. Shadow Tag prevents the foe from switching out, thereby allowing for the removal of a sufficiently weakened threat.

Usage Tips
========
Owing to its fragility, Mega Gengar should usually not be switched into attacks, excluding weak resisted hits like support Arceus-Fairy's Judgment and Arceus-Poison's Poison Jab. Rely on free switches, double switches, or, rarely, support from pivots such as Magearna and Yveltal to get it into play. It can also be brought in on a predicted use of Toxic from support Arceus formes or walls, but this is risky. Mega Gengar should use its positive matchup against several common support Arceus formes, most notably Arceus-Fairy and Arceus-Poison, to break the defensive backbone of teams that lack other answers to threatening sweepers such as Zygarde-C and Marshadow. If using Destiny Bond, assess early-game which problematic member of the opponent's team should be removed by Destiny Bond and what can be eliminated by coverage. Try to preserve Mega Gengar to check the former, as Destiny Bond can potentially remove a threat that has a strongly positive matchup against Mega Gengar's team as a whole. Be very careful in revealing Destiny Bond and err on the side of delaying its use, as often enough, unsuspecting opponents will assume that Mega Gengar will not stay in against a check and are thus inclined to set up, set entry hazards, or use other status moves. Taunt in conjunction with Destiny Bond can remedy this, but requires a risky prediction. Use Substitute to stall out residual damage, such as from Toxic or Leech Seed, and also to rack up Life Orb recoil and Special Defense drops on Mega Rayquaza. Mega Gengar's efficacy increases dramatically upon scouting the opponent's sets. For example, while Ferrothorn is normally able to check Mega Gengar due to Gyro Ball 2HKOing it, sets that have been shown to forego this move for Grass-type coverage or otherwise can be trapped and eliminated by Focus Blast. Conversely, coverage moves such as Earth Power and Roar on support Arceus formes result in a losing matchup; be sure to have teammates that take advantage of the loss in utility that these Pokemon trade for the ability to handle Mega Gengar. For example, Earth Power variants of Arceus-Poison typically cannot fit Stealth Rock, which is advantageous for Defog users that are threatened by it such as Arceus-Fairy. It is important to be extremely cautious in the use of Mega Gengar if the opponent has a Pursuit trapper such as Tyranitar, as a single well-timed double switch can immediately result in Mega Gengar's removal. If the opponent makes a move that is seemingly a mistake against a team utilizing Mega Gengar, it is likely a lure and should not be capitalized on immediately. Substitute can be used on the turn Gengar Mega Evolves to ensure safety in such a matchup. Note that Focus Blast variants of Mega Gengar can be used effectively to lure and KO one of its common Pursuit trappers in Tyranitar.

Team Options
========
Mega Gengar can be tailored to support almost every sweeper in the tier depending on the team's need. Defensive Zygarde has excellent defensive synergy with Mega Gengar, providing a switch-in for the likes of Ho-Oh and Primal Groudon while appreciating the removal of Fairy-types. Mega Gengar can also handle Choice Band and mixed variants of Mega Rayquaza, which threaten to break through Zygarde. In a similar vein, Dragon Dance Zygarde appreciates the removal of its primary checks in support Arceus-Fairy and Arceus-Water lacking Judgment. Taunt from Mega Gengar also enables it to set up on targets like support Arceus-Poison that would otherwise cripple it with status. Zygarde may also use Thousand Waves to trap support Arceus-Fairy on the switch, thereby allowing Mega Gengar to safely eliminate it without fearing a potential double switch. Marshadow appreciates the removal of support Arceus formes such as Arceus-Poison and Arceus-Fairy. Yveltal checks Marshadow and appreciates the removal of its Fairy-type checks, which it effectively lures. It may also provide U-turn support to safely bring Mega Gengar into play. Entry hazard setters such as Ferrothorn appreciate this set's ability to prevent Defog via Taunt and its good matchup against several common Defoggers such as support Arceus formes. Ferrothorn and Celesteela can also situationally provide Leech Seed support for Mega Gengar, thereby allowing it to stall out certain threats such as Calm Mind Arceus formes in conjunction with Taunt and Substitute. Arceus-Fairy and Xerneas can check problematic Pokemon such as Yveltal, Arceus-Dark, and Marshadow for Mega Gengar. Geomancy Xerneas also appreciates one of its common checks in Arceus-Poison being disposed of. Mega Gengar can also lure and use Taunt on Arceus-Dark, thereby allowing Xerneas to set up on it without fear of Toxic or Perish Song. Ho-Oh walls support Arceus-Ground and Calm Mind Arceus-Steel, both of which are difficult for Mega Gengar to take on.

[SET]
name: Status Inducer
move 1: Hex
move 2: Sludge Bomb
move 3: Will-O-Wisp
move 4: Taunt / Substitute
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Hex doubles in Base Power against statused foes and is capable of 2HKOing statused support Arceus formes, Ferrothorn, and offensive Zygarde-C. It should be noted that unboosted Hex falls short of an OHKO on Ultra Necrozma. Sludge Bomb complements Hex well with a significant chance to poison foes while maintaining Mega Gengar's ability to remove Fairy-types and deal greater damage to unstatused foes. Will-O-Wisp cripples prominent physical attackers and gives Mega Gengar a reliable method to boost the power of Hex. It also allows for the removal of Arceus-Poison and specially defensive Necrozma-DM, both of which are 2HKOed by boosted Hex and can't OHKO Mega Gengar once burned. Taunt shuts down passive Pokemon and is particularly useful against clerics such as Blissey. Substitute, in addition to its usual roles of helping Mega Gengar scout switch-ins and avoid Pursuit trapping, allows it to capitalize on status support such as free turns created by full paralysis.

Set Details
========
Maximum Speed and Special Attack investment are required to make full use of Mega Gengar's offensive potential. Shadow Tag prevents the foe from switching out, thereby allowing for the removal of a sufficiently weakened threat.

Usage Tips
========
Sludge Bomb can be used in an attempt to poison foes like Primal Groudon, Ho-Oh, and Zygarde-C in situations where this is safe, such as when Mega Gengar is behind a Substitute. Mega Gengar's teammates should aggressively inflict status on enemy Pokemon to allow for liberal use of boosted Hex. Specific support Arceus formes such as Arceus-Poison and Arceus-Water are prime targets for this set and are easily eliminated upon being statused. Besides directly boosting the power of Hex, Will-O-Wisp significantly reduces the damage Mega Gengar takes from some weaker physical hits, allowing it to stay in on certain threats it would otherwise be unable to handle. These hits include support Necrozma-DM's Sunsteel Strike and Ferrothorn's Power Whip—the latter move will not break Mega Gengar's Substitute after a burn. While this Mega Gengar variant has room to play more aggressively with attempting to directly trap support Necrozma-DM, one should be careful of Earthquake in this specific matchup. One can also pivot Mega Gengar into foes that utilize Rest for recovery, notably Zygarde-C and Primal Kyogre, and inflict massive damage with Hex. In certain matchups, Will-O-Wisp can be used to attempt to burn Pursuit trappers on the switch when Gengar Mega Evolves.

Team Options
========
Defensive Zygarde is a premier partner for Mega Gengar; it spreads status of its own via Glare or Toxic, thus boosting the power of Hex, and appreciates the removal of Arceus-Fairy and Xerneas. In return, Mega Gengar appreciates a switch-in for the likes of Primal Groudon and Marshadow. Dragon Dance Zygarde can paralyze foes as well and finds it easier to set up on targets that have been burned or otherwise crippled. Similarly, Ho-Oh has a significant chance to inflict burns through Sacred Fire and walls support Arceus-Ground and Calm Mind Arceus-Steel, which are otherwise able to eliminate Mega Gengar if unstatused. Marshadow appreciates the removal of its common checks in Arceus-Poison and Arceus-Fairy. The Marshadium Z set may also find additional setup opportunities on targets that have been burned by Will-O-Wisp. Geomancy Xerneas is another example of a sweeper for which Will-O-Wisp support can possibly provide a more favorable setup condition. Mega Gengar is also capable of outright eliminating some of the common checks to Xerneas, namely Arceus-Poison and support Necrozma-DM. Spikes support from the likes of Ferrothorn and Skarmory in conjunction with potential Sludge Bomb poisoning can accumulate considerable chip damage on foes. Likewise, Stealth Rock support from Primal Groudon and Arceus formes inflicts significant damage to Yveltal that attempt to revenge kill Mega Gengar. Miscellaneous status users such as various support Arceus formes and support Primal Groudon prove useful in supporting this Mega Gengar variant as well. The latter is also capable of checking boosted Xerneas and Primal Kyogre, both of which can break through Mega Gengar. Offensive Primal Groudon variants can lure in support Arceus-Water for Mega Gengar as well.

[SET]
name: Perish Trapper
move 1: Perish Song
move 2: Substitute
move 3: Disable
move 4: Shadow Ball / Sludge Bomb
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Perish Song synergizes with Shadow Tag to guarantee the removal of a passive foe. It can also put problematic sweepers or the last member of a team on a timer, preventing them from otherwise winning in some instances. Substitute helps stall for Perish Song turns and shields Mega Gengar from status. It can also be used to waste a predicted Z-Move. Disable prevents the foe from accessing its most recently used move and, in conjunction with Substitute, allows Mega Gengar to easily remove slower mono-attackers such as certain support Arceus formes and Choice-locked Pokemon. It may also provide a setup opportunity for a teammate by locking a trapped foe out of a threatening move. Shadow Ball allows Mega Gengar to revenge kill certain dangerous offensive threats that are difficult to stall out with Perish Song, such as Ultra Necrozma. Sludge Bomb can be used in its place to immediately eliminate Fairy-types like Xerneas and Arceus-Fairy, preventing Defog from the latter.

Set Details
========
Maximum Speed and Special Attack investment allow Mega Gengar to outspeed and nearly always OHKO Ultra Necrozma. Shadow Tag prevents the foe from switching out, thereby allowing Mega Gengar to remove threats that it can stall out for the duration of Perish Song.

Usage Tips
========
This Mega Gengar variant has the ability to easily overcome Arceus-Dark and defensive Yveltal, which are normally able to check it. When using this set, luring them in and setting a Substitute against a target typically forced out by Mega Gengar can prove effective. Note that Yveltal often carries Choice Scarf or Life Orb, which should be scouted for prior to attempting to trap it. Against slower Choice item users, use Disable immediately. Against foes that have only one way to significantly damage Mega Gengar, set a Substitute prior to the use of Disable to force the use of the appropriate move. Afterwards, it is generally safe to use Perish Song unless you suspect the foe is a Z-Move user. Note that early-game, Mega Gengar will typically want to switch out on the turn prior to the Perish Song counter expiring in order to avoid fainting. This must be done with some care, as the trapped target can cripple the switch-in with a status affliction or by other means and then freely go to a check upon fainting, leading to a massive loss in momentum. When choosing to switch Mega Gengar out on the turn the Perish Song counter reaches zero, make a careful analysis to determine whether this is in fact worthwhile, or whether trading Mega Gengar with the immediate threat instead will better preserve momentum. Take care in scouting for potential coverage options on otherwise easily trappable targets, such as Earth Power on Arceus-Poison, phazing moves on support Arceus formes and Ho-Oh, and Earthquake on Necrozma-DM. In particular, be very careful of potential Z-Move users, as Z-Moves ignore their base move being disabled. The most common targets for this set that often run a Z-Move are Arceus-Water and support Necrozma-DM—telltale signs of this are Liquidation on Arceus-Water and a lack of Leftovers recovery on Necrozma-DM. These threats can be handled by setting an extra Substitute after their base attacking move has been disabled. If Mega Gengar's set has been scouted beforehand, these threats may even predict Disable and immediately use their Z-Move, so exercise caution in these situations. Additionally, this set can remove most variants of Ferrothorn, but it will likely accumulate multiple layers of entry hazards in the process, usually necessitating Defog support from a partner. One should note that the lack of Taunt on this set means that phazers like Ho-Oh, Lugia, and Skarmory cannot be stalled out with Perish Song, though the latter two take heavy damage from Shadow Ball. It is also important to keep in mind that if Disable is used prior to Perish Song, the foe will not be disabled on the last turn of the counter and can therefore proceed to hit the switch-in hard on the turn it faints.

Team Options
========
Entry hazard setters such as Primal Groudon and Ferrothorn appreciate the removal of almost every common Defogger in the tier. One of these, Arceus-Water, is often employed as the primary check to offensive Primal Groudon sets as well. The removal of Ferrothorn enables Primal Kyogre to more easily dismantle the defensive core of balance teams. Zygarde-C appreciates the elimination of its usual checks in Arceus-Fairy and Arceus-Water. Ultra Necrozma benefits from the removal of its common checks in defensive Yveltal and Arceus-Dark. These particular threats are very easily lured in and KOed by Mega Gengar, leading to excellent synergy between Ultra Necrozma and this set. Offensive Lunala also appreciates the removal of these two threats as well, as they are often the primary checks to it on a typical team. This set easily eliminates Arceus-Poison and support Necrozma-DM, two common checks to Geomancy Xerneas. This aids greatly in facilitating a Xerneas sweep late-game.

[STRATEGY COMMENTS]
Other Options
=============
Mega Gengar possesses a number of esoteric coverage options that improve its matchup against specific threats. Thunder 2HKOes Yveltal, Primal Kyogre, and Celesteela and deals heavy damage to Ho-Oh, while Hidden Power Ice KOes base forme Zygarde after Stealth Rock damage. Icy Wind is a weaker alternative to Hidden Power Ice that additionally provides speed control, which can prove useful against healthy Dragon Dance variants of Mega Rayquaza and Zygarde that try to set up on Mega Gengar. However, these options are difficult to fit. One can opt for various mono-attacking sets in conjunction with Mega Gengar's plethora of utility options aside from the mentioned Perish Song set. A set utilizing Taunt / Substitute / Destiny Bond / Shadow Ball or Sludge Bomb allows for more reliable use of Destiny Bond while maintaining Mega Gengar's general utility with Substitute. Additionally, one can opt for Disable over a coverage move; this trades coverage for the ability to remove slower mono-attackers. Toxic can be used on the status-inducing set to cripple several of Mega Gengar's common checks that are immune to or do not mind Will-O-Wisp, such as Ho-Oh. Hypnosis is yet another status-inducing option and is quite difficult to handle should it hit its targets. Its inconsistency, however, should be stressed. Reflect Type prevents Mega Gengar from being Pursuit trapped and gives it a positive matchup against Ferrothorn variants carrying Gyro Ball. Protect guarantees safe Mega Evolution against foes like Marshadow and Choice Scarf Yveltal and can be used to help stall out Perish Song turns. However, it is usually outclassed by the other mentioned utility options and is punished more by mispredictions than Substitute. Pain Split is an option for defensive teams that wish to extend Mega Gengar's longevity. Unfortunately, this move is of questionable overall value relative to Mega Gengar's other utility options. Finally, Taunt can be used over Shadow Ball or Sludge Bomb on the Perish Trapper set to make Mega Gengar an extremely potent stallbreaker, as it can even eliminate phazers like defensive Ho-Oh with proper prediction. However, this makes the set overly passive and often useless in other matchups and is therefore not generally recommended.

Checks and Counters
===================
As Shadow Tag allows Mega Gengar to force matchups, it in fact has no counters. Its checks are generally comprised of revenge killers and Pokemon that cannot be trapped.

**Faster Threats and Priority**: Most of the metagame's Choice Scarf users such as Mega Rayquaza and Yveltal outspeed Mega Gengar and easily eliminate it owing to its fragility. While Mega Gengar is immune to Extreme Speed, other forms of priority, most notably from Marshadow and Yveltal, easily KO it. Mega Mewtwo Y and Deoxys-A are examples of the few viable Pokemon that naturally outspeed Mega Gengar and therefore easily eliminate it, though they do not serve as suitable switch-ins on the turn Gengar Mega Evolves. Even base forme Mewtwo can force Mega Gengar out, as the latter usually cannot afford to risk a Speed tie.

**Pursuit Trappers**: Pursuit users such as Tyranitar, Marshadow, Deoxys-A, and Alolan Muk can eliminate a fleeing Mega Gengar, though Mega Gengar must lack Focus Blast in Tyranitar's case. Note that Marshadow must make a risky prediction, especially if the Mega Gengar user is aware that it carries Pursuit. Additionally, Mega Gengar is capable of eliminating slower Pursuit trappers with Destiny Bond.

**Bulky Offensive Threats**: The likes of Primal Kyogre, Zygarde-C, Ho-Oh, and specially defensive Primal Groudon all escape the 2HKO from any of Mega Gengar's commonly seen coverage moves and easily remove it with their STAB moves. They can only be overcome by the use of Destiny Bond, boosted Hex, or, in some cases, the Perish Song set. Arceus-Ground and Arceus-Dark are also able to accomplish this but are shakier checks—Mega Gengar often runs coverage specifically to handle Arceus-Dark.

**Pokemon that are Immune to Shadow Tag**: Ghost-types are immune to Shadow Tag, and therefore Mega Gengar proves ineffective in eliminating passive Ghost-type Pokemon such as Giratina. Defensive teams also have the option of equipping passive walls with Shed Shell in order to escape from Shadow Tag; pivoting moves such as Magearna's Volt Switch accomplish the same.

[CREDITS]
- Written by: [[Zayele, 471586]]
- Quality checked by: [[pichus, 374620], [ice-master-523, 464176]]
- Grammar checked by: [[bigtalk, 466663], [lotiasite, 302985]]
 
Last edited:

Ginger Princess

Girl moding so hard rn
is a Site Content Manager Alumnusis a Forum Moderator Alumnusis a Community Contributor Alumnusis a Top Contributor Alumnus
hey Zayele, understanding that you did in fact reserve this in August, I would just like to let you know that in general we are winding down from Gen 7 analyses so OM analyses can move on to Gen 8, and reservations were closed off in late 2019.

However, seeing that this analysis is clearly well worked on, and after hearing from AG QC that the information is good, and considering that you did in fact reserve this before the reservations were closed down, I will allow this to remain and not be archived.
 

Lana

formerly pichus
is a Forum Moderatoris a Community Contributoris a Contributor to Smogonis a Battle Simulator Staff Alumnus
OMPL Champion
[OVERVIEW]


* Mega Gengar is the preeminent trapper in the metagame and as such cannot be ignored when building and playing in the tier.
* Its incredible versatility and plethora of utility options give it the unique ability to support essentially every relevant sweeper in the tier by removing their checks, such as Arceus-Fairy for Zygarde and Marshadow.
* Its typing (granting immunity to Extreme Speed) and excellent base 130 speed mention the special attack too allow it to eliminate several notable threats, such as Mega Rayquaza, Ultra Necrozma, and Arceus formes. It may also block Extreme Speed, Rapid Spin and easily switches into Toxic-reliant walls like Lugia and Skamory.
* An immediate offensive presence and a more consistent performance against offense serve to distinguish it from the tier’s other prominent trapper in Gothitelle.
try to mention that its one of the best revenge killers in one of the points above
* A wide array of utility options and movepool allow Mega Gengar to bypass many of its would-be checks.
* Extreme fragility means that Mega Gengar can sometimes find difficulty coming into play, and is often reliant on prediction. Its lack of bulk relative to Gothitelle means that it has a more difficult time manually switching into support Arceus formes. plus no reliable recovery so you have to be careful when youre switching in vs ferrothorn or celesteela
* As a Mega Evolution, there arises a question of opportunity cost in the use of Mega Gengar (particularly with regards to Mega Rayquaza), and therefore it cannot fit into every build.
* Mega Gengar’s prevalence in the tier means that certain otherwise trappable Pokemon sometimes elect to run coverage to handle it, while defensive teams tend to equip their passive walls with Shed Shell or use Pursuit trappers to hinder its effectiveness.


[SET]

name: Trapper
move 1: Shadow Ball
move 2: Sludge Wave
move 3: Substitute remove sub and change to taunt/fmiss
move 4: Taunt / Destiny Bond / Focus Blast this should be sub/taunt/dbond
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe



[SET COMMENTS]
Moves
========


* Shadow Ball and Sludge Wave form a potent STAB combination; <<move this to set details Shadow Ball eliminates Ultra Necrozma and deals significant damage to the likes of Necrozma Dusk-Mane, Lugia, and Lunala.
* Sludge Wave eliminates Fairy-types, most notably Arceus-Fairy and Xerneas, and is Mega Gengar’s strongest STAB move.
* Taunt prevents Mega Gengar from being used as setup fodder, allows it to have a positive matchup against passive Pokemon, and also prevents it from being phazed by Roar or Whirlwind from Pokemon like Lugia and skarmory. It is also required to successfully eliminate the common Arceus-Poison along with other passive defensive walls like skarmory, ferrothorn, celesteela, lugia.
* Substitute allows Mega Gengar to scout the opponent’s initial switch-in to Gengar on the turn it Mega Evolves, as well as for Choice Scarf users. It also allows Mega Gengar to escape from Pursuit users and play around a weakened Yveltal’s Sucker Punch. Finally, it enables Mega Gengar to avoid debilitating status – e.g. Nuzzle from Smeargle and leech seed from ferro and steela.
* Destiny Bond can allow for a trade with a problematic Pokemon, and is generally easy to utilize owing to Mega Gengar’s frailty, though somewhat reliant on prediction. It is also Mega Gengar’s best tool against would-be checks such as Yveltal and Primal Kyogre that it cannot otherwise threaten. Finally, it allows Mega Gengar to serve as a check to certain setup sweepers such as Calm Mind Arceus formes.
* Focus Blast removes Tyranitar and improves the matchup against Extreme Killer Arceus, Arceus-Dark and Ferrothorn.
swap focus blast and dbond
* One can choose any combination of the listed utility options according to the team’s needs, but it should be noted that Substitute is by far the best option for Mega Gengar among them, in general. remove this one, i dont agree with this and shouldnt be here anyway
* Hex can be used over Shadow Ball given enough status support from teammates, but note that this worsens Mega Gengar’s matchup against Ultra Necrozma somewhat. remove this too, hex shouldnt be used on non wisp/non sludge bomb sets imo


Set Details
========
* Maximum speed investment with a positive nature allows Mega Gengar to outspeed Ultra Necrozma and anything slower.
* max attack lets it ohko unecro with sball and xerneas with wave. add other relevant stuff you can think of including the point from "moves" which i told you to add here
* gengarite is required to mega evolution



Usage Tips
========

* Owing to its fragility, Mega Gengar should usually not be switched into attacks (excluding weak resisted hits like support Arceus-Fairy’s Judgment and arceus poison's poison jab). Rely on free switches, double switches, or, rarely, support from pivots such as Magearna and Yveltal to get it into play. It can also be brought in on a predicted Toxic from support Arceus formes or walls, but this is risky.
* Mega Gengar should use its positive matchup against several common support Arceus formes, most notably Arceus-Fairy and Arceus-Poison, to break the defensive backbone of teams that lack other answers to threatening sweepers such as Zygarde-C and Marshadow.
* Assess which problematic member of the opponent’s team should be removed by Destiny Bond early on in the match, and what needs to be eliminated by coverage. Try to preserve Mega Gengar to check the former, as Destiny Bond can potentially remove a threat that has a strongly positive matchup against the team as a whole.
* Be very careful in revealing Destiny Bond and err on the side of delaying its use, as often enough unsuspecting opponents will assume that Mega Gengar will not stay in against a check, and are thus inclined to set up or set entry hazards and status. Taunt in conjunction with Destiny Bond can remedy this, but requires a risky prediction.
* Use Substitute to stall out residual damage, and also to gain an extra turn of Life Orb recoil on some threats that require chip damage to be KOed, such as Mega Rayquaza.
* Mega Gengar’s efficacy increases dramatically upon scouting the opponent’s sets. For example, while Ferrothorn is normally able to check Mega Gengar due to Gyro Ball 2HKOing it, sets that have been shown to forego this move for Grass-type coverage or otherwise can be trapped and eliminated. Conversely, coverage moves such as Earth Power or Roar on support Arceus formes result in a losing matchup; capitalize on the loss in utility that these Pokemon trade for the ability to handle Mega Gengar with your team.
* Be extremely cautious in the use of Mega Gengar if the opponent has a Pursuit trapper such as Tyranitar, as a single well-timed double switch can immediately result in Mega Gengar’s removal. If the opponent makes a move that is seemingly a mistake against a team utilizing Mega Gengar, it is likely a lure and should not be capitalized on immediately. Substitute can be used on the turn Gengar Mega Evolves to ensure safety in such a matchup. Note that Focus Blast variants of Mega Gengar can be used effectively to lure Tyranitar.



Team Options
========


* Mega Gengar can be tailored to support most every sweeper in the tier depending on the team’s need.
* Defensive Zygarde has excellent defensive synergy with Mega Gengar, providing a switch-in for the likes of Ho-oh and Primal Groudon while appreciating the removal of Fairy-types. It may also use Thousand Waves to trap Fairy-type switch-ins, thereby allowing Mega Gengar to safely eliminate them without fearing a potential double switch. Mega Gengar can also handle Choice Banded and mixed variants of Mega Rayquaza, which threaten to break through Zygarde.
do mention about the dragon dance sets too :( ddance zygarde + gengar is one of the best cores in ag
* Marshadow appreciates the removal of support Arceus formes such as Arceus-Poison and Arceus-Fairy.
* Yveltal checks Marshadow and appreciates the removal of its Fairy-type checks, which it effectively lures. It may also provide U-turn support to safely bring Mega Gengar into play.
* Entry hazard setters such as Ferrothorn appreciate this set’s ability to prevent Defog (via Taunt) and its good matchup against several common Defoggers like passive supportceus .
* Ferrothorn in particular can situationally provide Leech Seed support for Mega Gengar, thereby allowing it to stall out certain threats such as Calm Mind Arceus formes in conjunction with Taunt and Substitute.
* Arceus-Fairy and Xerneas can check problematic Pokemon such as Yveltal, Arceus-Dark, and Marshadow for Mega Gengar.
add the Ho-Oh point here as well



[SET]
name: Status Inducer
move 1: Hex
move 2: Sludge Bomb
move 3: Will-O-Wisp
move 4: Taunt / Substitute
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe


[SET COMMENTS]
Moves
========


* Hex doubles in base power against statused foes, and is capable of 2HKOing statused support Arceus formes, ferrothorn, and zygarde. It should be noted that unboosted Hex falls short of an OHKO on Ultra Necrozma.
* Sludge Bomb complements Hex well with a significant chance to poison foes, while maintaining Mega Gengar’s ability to remove Fairy-types.
* Will-O-Wisp cripples prominent physical attackers and gives a reliable method to boost the power of Hex.
* Taunt shuts down passive Pokemon, and is also useful against clerics.
* Substitute, in addition to its usual roles of helping Gengar scout switch-ins and avoid Pursuit trapping, also allows it to capitalize on free turns created by paralysis support. should just type general status support > paralysis


Set Details
========

* Maximum Speed and Special Attack investment are required to make full use of Mega Gengar’s offensive potential.


Usage Tips
========

* Sludge Bomb can be used in an attempt to poison the foe in situations where this is safe, such as when Mega Gengar is behind a Substitute. foes like pdon, hooh and zygarde
* Mega Gengar’s teammates should aggressively status enemy Pokemon to allow use of boosted Hex. Specific support Arceus formes such as Arceus-Poison and Arceus-Water are prime targets and are easily eliminated upon being statused.
* Besides directly boosting the power of Hex, Will-O-Wisp significantly reduces the damage Mega Gengar takes from some weaker physical hits, such as support Necrozma Dusk-Mane’s Sunsteel Strike and Ferrothorn’s Power Whip – the latter will not break Mega Gengar’s substitutes after a burn. One can also attempt to burn Pursuit trappers on the switch when Gengar Mega Evolves.
* One can pivot Mega Gengar into foes that utilize Rest for recovery (notably Zygarde-C and Primal Kyogre) and inflict massive damage with Hex.
* While this Mega Gengar variant can attempt to play more aggressively with attempting to directly trap support Necrozma Dusk-Mane, one should be careful of Earthquake in this specific matchup.


Team Options
========

* Defensive Zygarde is a premiere partner for Mega Gengar; it spreads status of its own via Glare (thus boosting the power of Hex), and appreciates the removal of Arceus-Fairy and Xerneas. In return, Mega Gengar appreciates a switch-in for the likes of Primal Groudon and Marshadow.
mention dd again
* Similarly, Ho-Oh has a significant chance to inflict burns through Sacred Fire, and walls support Arceus-Ground, which is otherwise able to remove Mega Gengar with ease.
marshadow point should be added here
* Stealth Rock support from Primal Groudon or Arceus formes inflicts significant chip damage to Yveltal that attempt to revenge kill Mega Gengar. spike stack from ferrothorn and skarm is also appreciated
* Miscellaneous status users such as various Arceus formes and support Primal Groudon prove useful in supporting this Mega Gengar variant as well. The latter is also capable of checking boosted Xerneas and Primal Kyogre, which break through Mega Gengar. Offensive Primal Groudon variants can lure support Arceus-Water for Mega Gengar as well.


[SET]

name: Perish Trapper
move 1: Perish Song
move 2: Substitute
move 3: Disable
move 4: Shadow Ball / Sludge Bomb / Destiny Bond
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe



[SET COMMENTS]

Moves
========


* Perish Song synergizes with Shadow Tag to guarantee the removal of a passive foe.
* Substitute helps stall Perish Song turns and shields Mega Gengar from status.
* Disable prevents the foe from accessing its most recently-used move, and, in conjunction with Substitute, allows Gengar to easily remove slower mono-attackers such as certain support Arceus formes and Choice-locked Pokemon.
* Shadow Ball allows Mega Gengar to retain the ability to revenge kill certain dangerous offensive threats that are otherwise difficult to stall out with Perish Song, such as Ultra Necrozma. Sludge Bomb can be used in its place to immediately eliminate Fairy-types like Xerneas and fairyceus.



Set Details
========


* Maximum Speed and Special Attack investment allow Mega Gengar to outspeed and OHKO Ultra Necrozma.


Usage Tips
========


* This Mega Gengar variant has the ability to easily overcome Arceus-Dark and defensive Yveltal, which are normally able to break through it. When using this set, luring them by setting a Substitute against a target typically forced out by Mega Gengar can prove effective. do scout for scarf yveltal though
* Against a slower Choice item user, use Disable immediately. Against mono-attackers (or foes that have only one way to significantly damage Mega Gengar), set a Substitute prior to the use of Disable to lure the appropriate move. Afterwards, it is generally safe to use Perish Song, unless you suspect the opponent is a Z-move user.
* Note that early game, Mega Gengar will typically want to switch out on the turn prior to the Perish counter expiring in order to avoid fainting. This must be done with some care, as the trapped target can cripple the switch-in with a status affliction or otherwise and then freely go to a check upon fainting, leading to a massive loss in momentum.
* When choosing to switch Mega Gengar out on the turn the Perish counter reaches zero, make a careful analysis to determine whether this is in fact worthwhile, or whether trading with the immediate threat will better preserve momentum.
* Take care in scouting for potential coverage options on easily trappable targets (e.g. Earth Power on Arceus-Poison and phasing moves on random supportceus, mono attacking don and hooh).
* Be very careful of potential Z-move users, as these ignore their base move being Disabled. The most common targets for this set that often run a Z-move are Arceus-Water and support Necrozma Dusk-Mane – telltale signs of this are Liquidation on Arceus-Water and a lack of Leftovers recovery on Necrozma Dusk-Mane. These sets can be handled by setting an extra Substitute.
* This set can remove most variants of Ferrothorn, but it will likely accumulate multiple layers of entry hazards in the process, usually necessitating Defog support.
* It should be noted that the lack of Taunt on this set means that Lugia and Skarmory cannot be trapped, though they take heavy damage from Shadow Ball.
* One should note that if Disable is used prior to Perish Song, the foe will not be disabled on the last turn of the counter, and can therefore proceed to hit the switch-in hard on the turn it faints.



Team Options
========

* Entry hazard setters such as Primal Groudon and Ferrothorn appreciate the removal of almost every common Defogger in the tier. One of these, Arceus-Water, is often employed as the primary check to offensive Primal Groudon sets as well.
* The removal of Ferrothorn enables Primal Kyogre to more easily dismantle the defensive core of balance teams.
* Zygarde-C appreciates the elimination of its usual checks in Arceus-Fairy and Arceus-Water.
* Ultra Necrozma benefits from the removal of its common checks in defensive Yveltal and Arceus-Dark. These particular threats are very easily lured by Mega Gengar, leading to excellent synergy between Ultra Necrozma and this set.





[STRATEGY COMMENTS]

Other Options
=============


* Mega Gengar possesses a number of esoteric coverage options that improve its matchup against specific threats. Thunder 2HKOs Yveltal and Primal Kyogre, while Hidden Power Ice can KO base forme Zygarde after Stealth Rock damage. Icy Wind is a weaker alternative to Hidden Power Ice that additionally provides speed control, which can prove useful against healthy Dragon Dance variants of Mega Rayquaza and Zygarde. However, these options are difficult to fit.
* One can opt for various mono-attacking sets in conjunction with Mega Gengar’s various utility options aside from the mentioned Perish Song set. A set utilizing Taunt, Substitute, and Destiny Bond together allows for more reliable use of Destiny Bond while maintaining Mega Gengar’s general utility with Substitute. Additionally, one can opt for Disable over a coverage move; this trades coverage for the ability to remove slower mono-attackers.
* Reflect Type prevents Mega Gengar from being Pursuit trapped and gives it a positive matchup against Ferrothorn variants carrying Gyro Ball.
* Toxic can be used on the status-inducing set to cripple several of Mega Gengar’s common checks that are immune to or do not mind Will-O-Wisp, such as Ho-oh.
* Hypnosis can be used on the status-inducing set, and is quite difficult to handle should it hit its targets. Its inconsistency, however, should be stressed.
* Pain Split is an option for defensive teams that wish to extend Mega Gengar’s longevity. Unfortunately, this move is of questionable overall value relative to Mega Gengar’s other utility options.
* Protect guarantees safe Mega Evolution and can be used to help stall out Perish Song turns. It is usually outclassed by the other mentioned utility options, and is punished more by mispredictions than Substitute.
* Taunt can be used over Shadow Ball or Sludge Bomb on the Perish Trapper set to make Mega Gengar an extremely potent stallbreaker, as it can even eliminate defensive Ho-Oh with proper prediction. However, this makes the set overly passive and often useless in other matchups, and is therefore not generally recommended.



Checks and Counters
===================



As Shadow Tag allows Mega Gengar to force matchups, it in fact has no counters. Its checks are generally comprised of revenge killers and Pokemon that cannot be trapped.


**Faster Threats and Priority**: Most of the tier’s Choice Scarf users such as Mega Rayquaza and Yveltal outspeed Mega Gengar and easily eliminate it owing to its fragility. While Mega Gengar is immune to Extreme Speed, other forms of priority, most notably from Marshadow and Yveltal, easily KO it.
Mega Mewtwo-Y and Deoxys-A are some of the few viable Pokemon that naturally outspeed Mega Gengar and therefore easily eliminate it, though it does not serve as a suitable switch-in on the turn Gengar Mega Evolves. Even base forme Mewtwo can often force Mega Gengar out, as it usually cannot afford to risk a speed tie.


**Pursuit Trappers**: Pursuit users such as Deoxys-A, Marshadow, Muk-Alola, and Tyranitar can eliminate a fleeing Mega Gengar (though Mega Gengar must lack Focus Blast in Tyranitar’s case). Note that Marshadow must make a risky prediction, especially if its set has been scouted beforehand. Additionally, Mega Gengar is capable of eliminating the slower Pursuit trappers with Destiny Bond.


**Bulky Offensive Threats**: The likes of Primal Kyogre, Zygarde-C, Ho-Oh, and specially defensive Primal Groudon all escape the 2HKO from any of Mega Gengar’s commonly seen coverage moves and easily remove it with their STAB. They can only be overcome by the use of Destiny Bond (or the Perish Song set in some cases). Arceus-Ground and Arceus-Dark may also be able to accomplish this, but are shakier checks - Mega Gengar often runs coverage to handle Arceus-Dark specifically.


**Immunity to Shadow Tag**: Ghost-types are immune to Shadow Tag, and therefore Mega Gengar proves ineffective in eliminating passive Ghost-type Pokemon such as Giratina. Defensive teams also have the option of equipping passive walls with Shed Shell in order to escape from Shadow Tag; pivoting abilities such as Magearna’s Volt Switch accomplish the same.

[CREDITS]

- Written by: [[Zayele,471586]]
- Quality checked by: [[, ], [, ], [, ]]
- Grammar checked by: [[, ], [, ]]
good job!! qc 1/3
 

Icemaster

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RBTT Champion
[OVERVIEW]


* Mega Gengar is the preeminent trapper in the metagame and as such cannot be ignored when building and playing in the tier.
* Its incredible versatility and plethora of utility options give it the unique ability to support essentially every relevant sweeper in the tier by removing their checks, such as Arceus-Fairy for Zygarde and Marshadow.
* Its typing and excellent base 130 speed in tandem with base 170 special attack allow it to eliminate several notable threats, such as Mega Rayquaza, Ultra Necrozma, and Arceus formes. It has immunity to Extreme Speed, blocks Rapid Spin, and easily switches into Toxic-reliant walls like Lugia and Skarmory.
* An immediate offensive presence, excellent potential as a revenge killer, notably revenging threats such as Ultra-Necrozma and chipped non Scarfed variants of Mega Rayquaza, and a more consistent performance against offense serve to distinguish it from the tier’s other prominent trapper in Gothitelle.
* A wide array of utility options and movepool allow Mega Gengar to bypass many of its would-be checks.
* Extreme fragility means that Mega Gengar can sometimes find difficulty coming into play, and is often reliant on prediction. Its lack of bulk relative to Gothitelle means that it has a more difficult time manually switching into support Arceus formes. A lack of reliable recovery means it needs to take care in coming into play against Ferrothorn and Celesteela as well.
* As a Mega Evolution, there arises a question of opportunity cost in the use of Mega Gengar (particularly with regards to Mega Rayquaza), and therefore it cannot fit into every build.
* Mega Gengar’s prevalence in the tier means that certain otherwise trappable Pokemon sometimes elect to run coverage to handle it, while defensive teams tend to equip their passive walls with Shed Shell or use Pursuit trappers to hinder its effectiveness.


[SET]

name: Trapper
move 1: Shadow Ball
move 2: Sludge Wave
move 3: Taunt / Focus Blast
move 4: Substitute / Taunt / Destiny Bond
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe



[SET COMMENTS]
Moves
========


* Shadow Ball eliminates Ultra Necrozma and deals significant damage to the likes of Necrozma Dusk-Mane, Lugia, and Lunala.
* Sludge Wave eliminates Fairy-types, most notably Arceus-Fairy and Xerneas, and is Mega Gengar’s strongest STAB move.
* Taunt prevents Mega Gengar from being used as setup fodder, allows it to have a positive matchup against passive Pokemon, and also prevents it from being phazed by Roar or Whirlwind from Pokemon like Lugia. It is also required to successfully eliminate the common Arceus-Poison.
* Substitute allows Mega Gengar to scout the opponent’s initial switch-in to Gengar on the turn it Mega Evolves, as well as for Choice Scarf users. It also allows Mega Gengar to escape from Pursuit users and play around a weakened Yveltal’s Sucker Punch. Finally, it enables Mega Gengar to avoid debilitating status – e.g. Nuzzle from Smeargle.
* Focus Blast removes Tyranitar and improves the matchup against Extreme Killer Arceus, Arceus-Dark and Ferrothorn.
* Destiny Bond can allow for a trade with a problematic Pokemon, and is generally easy to utilize owing to Mega Gengar’s frailty, though somewhat reliant on prediction. It is also Mega Gengar’s best tool against would-be checks such as Yveltal and Primal Kyogre that it cannot otherwise threaten. Finally, it allows Mega Gengar to serve as a check to certain setup sweepers such as Calm Mind Arceus formes.



Set Details
========
* Maximum speed investment with a positive nature allows Mega Gengar to outspeed Ultra Necrozma and anything slower.
* Maximum Special Attack investment in tandem with a potent STAB combination in Shadow Ball and Sludge Wave allow it to OHKO threats like Ultra Necrozma and unboosted Xerneas.
* Gengarite is required for Mega Evolution.


Usage Tips
========

* Owing to its fragility, Mega Gengar should usually not be switched into attacks (excluding weak resisted hits like support Arceus-Fairy’s Judgment and Arceus-Poison's Poison Jab). Rely on free switches, double switches, or, rarely, support from pivots such as Magearna and Yveltal to get it into play. It can also be brought in on a predicted Toxic from support Arceus formes or walls, but this is risky.
* Mega Gengar should use its positive matchup against several common support Arceus formes, most notably Arceus-Fairy and Arceus-Poison, to break the defensive backbone of teams that lack other answers to threatening sweepers such as Zygarde-C and Marshadow.
* Assess which problematic member of the opponent’s team should be removed by Destiny Bond early on in the match, and what needs to be eliminated by coverage. Try to preserve Mega Gengar to check the former, as Destiny Bond can potentially remove a threat that has a strongly positive matchup against the team as a whole.
* Be very careful in revealing Destiny Bond and err on the side of delaying its use, as often enough unsuspecting opponents will assume that Mega Gengar will not stay in against a check, and are thus inclined to set up or set entry hazards and status. Taunt in conjunction with Destiny Bond can remedy this, but requires a risky prediction.
* Use Substitute to stall out residual damage, and also to gain an extra turn of Life Orb recoil on some threats that require chip damage to be KOed, such as Mega Rayquaza.
* Mega Gengar’s efficacy increases dramatically upon scouting the opponent’s sets. For example, while Ferrothorn is normally able to check Mega Gengar due to Gyro Ball 2HKOing it, sets that have been shown to forego this move for Grass-type coverage or otherwise can be trapped and eliminated. Conversely, coverage moves such as Earth Power or Roar on support Arceus formes result in a losing matchup; capitalize on the loss in utility that these Pokemon trade for the ability to handle Mega Gengar with your team.
* Be extremely cautious in the use of Mega Gengar if the opponent has a Pursuit trapper such as Tyranitar, as a single well-timed double switch can immediately result in Mega Gengar’s removal. If the opponent makes a move that is seemingly a mistake against a team utilizing Mega Gengar, it is likely a lure and should not be capitalized on immediately. Substitute can be used on the turn Gengar Mega Evolves to ensure safety in such a matchup. Note that Focus Blast variants of Mega Gengar can be used effectively to lure Tyranitar.



Team Options
========


* Mega Gengar can be tailored to support most every sweeper in the tier depending on the team’s need.
* Defensive Zygarde has excellent defensive synergy with Mega Gengar, providing a switch-in for the likes of Ho-oh and Primal Groudon while appreciating the removal of Fairy-types. It may also use Thousand Waves to trap Fairy-type switch-ins, thereby allowing Mega Gengar to safely eliminate them without fearing a potential double switch. Mega Gengar can also handle Choice Banded and mixed variants of Mega Rayquaza, which threaten to break through Zygarde.
* In a similar vein, Dragon Dance variants of Zygarde appreciates the removal of their primary check in support Arceus-Fairy. Taunt from Mega Gengar also enables it to set up on targets like support Arceus-Poison that would otherwise cripple it with status.
* Marshadow appreciates the removal of support Arceus formes such as Arceus-Poison and Arceus-Fairy.
* Yveltal checks Marshadow and appreciates the removal of its Fairy-type checks, which it effectively lures. It may also provide U-turn support to safely bring Mega Gengar into play.
* Entry hazard setters such as Ferrothorn appreciate this set’s ability to prevent Defog (via Taunt) and its good matchup against several common Defoggers, such as support Arceus formes.
* Ferrothorn or Celesteela in particular can situationally provide Leech Seed support for Mega Gengar, thereby allowing it to stall out certain threats such as Calm Mind Arceus formes in conjunction with Taunt and Substitute.
* Arceus-Fairy and Xerneas can check problematic Pokemon such as Yveltal, Arceus-Dark, and Marshadow for Mega Gengar.
* Ho-Oh walls support Arceus-Ground and Calm Mind Arceus-Steel, both of which are difficult for Mega Gengar to take on.



[SET]
name: Status Inducer
move 1: Hex
move 2: Sludge Bomb
move 3: Will-O-Wisp
move 4: Taunt / Substitute
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe


[SET COMMENTS]
Moves
========


* Hex doubles in base power against statused foes, and is capable of 2HKOing statused support Arceus formes, Ferrothorn, and Zygarde-C. It should be noted that unboosted Hex falls short of an OHKO on Ultra Necrozma.
* Sludge Bomb complements Hex well with a significant chance to poison foes, while maintaining Mega Gengar’s ability to remove Fairy-types while allowing Mega Gengar to deal high damage unstatused foes
* Will-O-Wisp cripples prominent physical attackers and gives a reliable method to boost the power of Hex, while notably allowing Mega Gengar to trap Defensive Necrozma-Dusk-Mane and Arceus-Poison
* Taunt shuts down passive Pokemon, and is also useful against clerics.
* Substitute, in addition to its usual roles of helping Gengar scout switch-ins and avoid Pursuit trapping, also allows it to capitalize on status support, e.g. free turns created by full paralysis.


Set Details
========

* Maximum Speed and Special Attack investment are required to make full use of Mega Gengar’s offensive potential.
* Gengarite is required to Mega Evolve.


Usage Tips
========

* Sludge Bomb can be used in an attempt to poison foes like Primal Groudon, Ho-Oh, and Zygarde-C in situations where this is safe, such as when Mega Gengar is behind a Substitute.
* Mega Gengar’s teammates should aggressively status enemy Pokemon to allow use of boosted Hex. Specific support Arceus formes such as Arceus-Poison and Arceus-Water are prime targets and are easily eliminated upon being statused.
* Besides directly boosting the power of Hex, Will-O-Wisp significantly reduces the damage Mega Gengar takes from some weaker physical hits, allowing it to stay in on certain threats it would otherwise be unable to handle. These include support Necrozma Dusk-Mane’s Sunsteel Strike and Ferrothorn’s Power Whip – the latter will not break Mega Gengar’s substitutes after a burn. One can also attempt to burn Pursuit trappers on the switch when Gengar Mega Evolves.
* One can pivot Mega Gengar into foes that utilize Rest for recovery (notably Zygarde-C and Primal Kyogre) and inflict massive damage with Hex.
* While this Mega Gengar variant can attempt to play more aggressively with attempting to directly trap support Necrozma Dusk-Mane, one should be careful of Earthquake in this specific matchup.


Team Options
========

* Defensive Zygarde is a premiere partner for Mega Gengar; it spreads status of its own via Glare (thus boosting the power of Hex), and appreciates the removal of Arceus-Fairy and Xerneas. In return, Mega Gengar appreciates a switch-in for the likes of Primal Groudon and Marshadow. Dragon Dance Zygarde can paralyze foes as well and will find it easier to set up on targets that have been burned or otherwise crippled.
* Similarly, Ho-Oh has a significant chance to inflict burns through Sacred Fire, and walls support Arceus-Ground and Calm Mind Arceus-Steel, which are otherwise able to remove Mega Gengar with ease.
* Marshadow appreciates the removal of its common checks in Arceus-Poison and Arceus-Fairy. Z-move sets may also find additional setup opportunities on targets burned by Will-o-Wisp. Xerneas also appreciates Will-O-Wisp support, eliminating or weakening major checks to it such as Necrozma-Dusk-Mane or Arceus-Poison
* Stealth Rock support from Primal Groudon or Arceus formes inflicts significant chip damage to Yveltal that attempt to revenge kill Mega Gengar. Spikes support from the likes of Ferrothorn and Skarmory in conjunction with potential Sludge Bomb poisoning can accumulate considerable chip damage on foes.
* Miscellaneous status users such as various Arceus formes and support Primal Groudon prove useful in supporting this Mega Gengar variant as well. The latter is also capable of checking boosted Xerneas and Primal Kyogre, which break through Mega Gengar. Offensive Primal Groudon variants can lure support Arceus-Water for Mega Gengar as well.



[SET]

name: Perish Trapper
move 1: Perish Song
move 2: Substitute
move 3: Disable
move 4: Shadow Ball / Sludge Bomb
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe



[SET COMMENTS]

Moves
========


* Perish Song synergizes with Shadow Tag to guarantee the removal of a passive foe. As a last ditch effort, it can also put an extremely problematic sweeper on a timer which may otherwise win.
* Substitute helps stall Perish Song turns and shields Mega Gengar from status.
* Disable prevents the foe from accessing its most recently-used move, and, in conjunction with Substitute, allows Gengar to easily remove slower mono-attackers such as certain support Arceus formes and Choice-locked Pokemon. It can also provide a setup opportunity for a teammate by locking the foe out of using a threatening move.
* Shadow Ball allows Mega Gengar to retain the ability to revenge kill certain dangerous offensive threats that are otherwise difficult to stall out with Perish Song, such as Ultra Necrozma. Sludge Bomb can be used in its place to immediately eliminate Fairy-types like Xerneas and Arceus-Fairy (preventing Defog from the latter).



Set Details
========


* Maximum Speed and Special Attack investment allow Mega Gengar to outspeed and OHKO Ultra Necrozma.
* Gengarite is required to Mega Evolve.


Usage Tips
========


* This Mega Gengar variant has the ability to easily overcome Arceus-Dark and defensive Yveltal, which are normally able to break through it. When using this set, luring them by setting a Substitute against a target typically forced out by Mega Gengar can prove effective. Note that Yveltal often carries Choice Scarf, which should be scouted for prior to attempting to trap it.
* Against a slower Choice item user, use Disable immediately. Against mono-attackers (or foes that have only one way to significantly damage Mega Gengar), set a Substitute prior to the use of Disable to lure the appropriate move. Afterwards, it is generally safe to use Perish Song, unless you suspect the opponent is a Z-move user.
* Note that early game, Mega Gengar will typically want to switch out on the turn prior to the Perish counter expiring in order to avoid fainting. This must be done with some care, as the trapped target can cripple the switch-in with a status affliction or otherwise and then freely go to a check upon fainting, leading to a massive loss in momentum.
* When choosing to switch Mega Gengar out on the turn the Perish counter reaches zero, make a careful analysis to determine whether this is in fact worthwhile, or whether trading with the immediate threat will better preserve momentum.
* Take care in scouting for potential coverage options on otherwise easily trappable targets (e.g. Earth Power on Arceus-Poison and phazing moves on support Arceus formes and mono-attacking Primal Groudon and Ho-Oh).
* Be very careful of potential Z-move users, as these ignore their base move being Disabled. The most common targets for this set that often run a Z-move are Arceus-Water and support Necrozma Dusk-Mane – telltale signs of this are Liquidation on Arceus-Water and a lack of Leftovers recovery on Necrozma Dusk-Mane. These sets can be handled by setting an extra Substitute.
* This set can remove most variants of Ferrothorn, but it will likely accumulate multiple layers of entry hazards in the process, usually necessitating Defog support.
* It should be noted that the lack of Taunt on this set means that Lugia and Skarmory cannot be trapped, though they take heavy damage from Shadow Ball.
* One should note that if Disable is used prior to Perish Song, the foe will not be disabled on the last turn of the counter, and can therefore proceed to hit the switch-in hard on the turn it faints.



Team Options
========

* Entry hazard setters such as Primal Groudon and Ferrothorn appreciate the removal of almost every common Defogger in the tier. One of these, Arceus-Water, is often employed as the primary check to offensive Primal Groudon sets as well.
* The removal of Ferrothorn enables Primal Kyogre to more easily dismantle the defensive core of balance teams.
* Zygarde-C appreciates the elimination of its usual checks in Arceus-Fairy and Arceus-Water.
* Ultra Necrozma benefits from the removal of its common checks in defensive Yveltal and Arceus-Dark. These particular threats are very easily lured by Mega Gengar, leading to excellent synergy between Ultra Necrozma and this set.





[STRATEGY COMMENTS]

Other Options
=============


* Mega Gengar possesses a number of esoteric coverage options that improve its matchup against specific threats. Thunder 2HKOs Yveltal and Primal Kyogre, while Hidden Power Ice can KO base forme Zygarde after Stealth Rock damage. Icy Wind is a weaker alternative to Hidden Power Ice that additionally provides speed control, which can prove useful against healthy Dragon Dance variants of Mega Rayquaza and Zygarde. However, these options are difficult to fit.
* One can opt for various mono-attacking sets in conjunction with Mega Gengar’s plethora of utility options aside from the mentioned Perish Song set. A set utilizing Taunt, Substitute, and Destiny Bond together allows for more reliable use of Destiny Bond while maintaining Mega Gengar’s general utility with Substitute. Additionally, one can opt for Disable over a coverage move; this trades coverage for the ability to remove slower mono-attackers.
* Reflect Type prevents Mega Gengar from being Pursuit trapped and gives it a positive matchup against Ferrothorn variants carrying Gyro Ball.
* Toxic can be used on the status-inducing set to cripple several of Mega Gengar’s common checks that are immune to or do not mind Will-O-Wisp, such as Ho-Oh.
* Hypnosis can be used on the status-inducing set, and is quite difficult to handle should it hit its targets. Its inconsistency, however, should be stressed.
* Pain Split is an option for defensive teams that wish to extend Mega Gengar’s longevity. Unfortunately, this move is of questionable overall value relative to Mega Gengar’s other utility options.
* Protect guarantees safe Mega Evolution and can be used to help stall out Perish Song turns. It is usually outclassed by the other mentioned utility options, and is punished more by mispredictions than Substitute.
* Taunt can be used over Shadow Ball or Sludge Bomb on the Perish Trapper set to make Mega Gengar an extremely potent stallbreaker, as it can even eliminate defensive Ho-Oh with proper prediction. However, this makes the set overly passive and often useless in other matchups, and is therefore not generally recommended.



Checks and Counters
===================



As Shadow Tag allows Mega Gengar to force matchups, it in fact has no counters. Its checks are generally comprised of revenge killers and Pokemon that cannot be trapped.


**Faster Threats and Priority**: Most of the tier’s Choice Scarf users such as Mega Rayquaza and Yveltal outspeed Mega Gengar and easily eliminate it owing to its fragility. While Mega Gengar is immune to Extreme Speed, other forms of priority, most notably from Marshadow and Yveltal, easily KO it.
Mega Mewtwo-Y and Deoxys-A are examples of the few viable Pokemon that naturally outspeed Mega Gengar and therefore easily eliminate it, though they do not serve as a suitable switch-in on the turn Gengar Mega Evolves. Even base forme Mewtwo can often force Mega Gengar out, as it usually cannot afford to risk a speed tie.


**Pursuit Trappers**: Pursuit users such as Deoxys-A, Marshadow, Muk-Alola, and Tyranitar can eliminate a fleeing Mega Gengar (though Mega Gengar must lack Focus Blast in Tyranitar’s case). Note that Marshadow must make a risky prediction, especially if its set has been scouted beforehand. Additionally, Mega Gengar is capable of eliminating the slower Pursuit trappers with Destiny Bond.


**Bulky Offensive Threats**: The likes of Primal Kyogre, Zygarde-C, Ho-Oh, and specially defensive Primal Groudon all escape the 2HKO from any of Mega Gengar’s commonly seen coverage moves and easily remove it with their STAB. They can only be overcome by the use of Destiny Bond (or the Perish Song set in some cases). Arceus-Ground and Arceus-Dark may also be able to accomplish this, but are shakier checks - Mega Gengar often runs coverage to handle Arceus-Dark specifically.


**Immunity to Shadow Tag**: Ghost-types are immune to Shadow Tag, and therefore Mega Gengar proves ineffective in eliminating passive Ghost-type Pokemon such as Giratina. Defensive teams also have the option of equipping passive walls with Shed Shell in order to escape from Shadow Tag; pivoting abilities such as Magearna’s Volt Switch accomplish the same.

[CREDITS]

- Written by: [[Zayele,471586]]
- Quality checked by: [[pichus,374620 ], [, ], [, ]]
- Grammar checked by: [[, ], [, ]]
Very well written, qc 2/3.
 

bigtalk

Banned deucer.
Zayele asked me to AMGP this so here you go :blobthumbsup:
  • AG is a metagame, not a tier
  • "opponent" refers to the player, whereas "foe" refers to the Pokemon
  • Don't use parentheses in analyses
  • Z-Moves
I made a couple of non-GP related changes. Also, I fixed the spacing for you and replaced all of the curly apostrophes (’) with regular ones ('). Use the method shown in this video to implement these changes so you don't have to do it yourself: https://spo.ink/gpvideo. Next time, I recommend writing the analysis directly in the forums editor instead of Word so you don't run into these issues.

add remove (comment)
(AC=add comma; RC=remove comma; AH=add hyphen; RH=remove hyphen)

[OVERVIEW]
Mega Gengar is the preeminent trapper in the metagame Anything Goes and, (AC) as such, (AC) cannot be ignored when building and playing in the tier metagame. Its incredible versatility and plethora of utility options give it the unique ability to support essentially every all relevant sweepers in the tier metagame by removing their checks, such as Arceus-Fairy for Zygarde and Marshadow. Its typing and excellent base 130 Speed in tandem with its base 170 Special Attack allow it to eliminate several notable threats, such as (should probably specify "non-Choice Scarf") Mega Rayquaza, Ultra Necrozma, and Arceus formes. It also has an immunity to Extreme Speed, blocks Rapid Spin, and easily switches into Toxic-reliant walls like Lugia and Skarmory. An immediate offensive presence and a more consistent performance against offense serve to distinguish it Mega Gengar from the tier's metagame's other prominent trapper in Gothitelle. It has excellent potential as a revenge killer as well, and serves as a check to Ultra Necrozma and chipped Mega Rayquaza in this capacity. (repeated info) A movepool that includes a wide array of utility options and movepool allows Mega Gengar to bypass many of its would-be checks. However, its extreme fragility and lack of reliable recovery means that Mega Gengar can sometimes find difficulty coming into play versus foes like support Arceus formes, Ferrothorn, and Celesteela, and is often reliant on prediction, (AC) and is much more vulnerable to being Pursuit trapped when compared to Gothitelle. (all this info was merged from the next two sentences) This lack of bulk relative to Gothitelle means that it can have a difficult time manually switching into support Arceus formes and is much more vulnerable to being Pursuit trapped. A lack of reliable recovery means it needs to take care in coming into play against Ferrothorn and Celesteela as well. As a Mega Evolution, (unnecessary) There arises a question of opportunity cost in the use of Mega Gengar, (AC) (particularly with regards to Mega Rayquaza) (avoid parenthesized comments) as it prevents one from using other Mega Evolutions such as Mega Rayquaza in particular, and therefore it cannot fit into every build. Lastly, Mega Gengar's prevalence in the tier means that certain otherwise trappable Pokemon sometimes elect to run coverage to handle it, while defensive teams tend to equip their passive walls with Shed Shell or use Pursuit trappers to hinder its effectiveness.

[SET]
name: Offensive Trapper (technically "trapper" applies to all the sets)
move 1: Shadow Ball
move 2: Sludge Wave
move 3: Taunt / Focus Blast
move 4: Substitute / Taunt / Destiny Bond
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Shadow Ball eliminates Ultra Necrozma and deals significant damage to the likes of Necrozma Dusk-Mane Necrozma-DM, Lugia, and Lunala (i am not sure if this is the best example since 1. lunala can switch out and 2. it could be scarfed. pdon is probably a better mention). Sludge Wave eliminates Fairy-types, most notably Arceus-Fairy and Xerneas, and is Mega Gengar's strongest STAB move. Taunt prevents Mega Gengar from being used as setup fodder, allows it to have a positive matchup against passive Pokemon, and also prevents it from being phazed by Roar or Whirlwind from Pokemon like Lugia. It is also required to successfully eliminate the common Arceus-Poison. Substitute allows Mega Gengar to scout the opponent's initial switch-in to Gengar it on the turn it Mega Evolves (RC) as well as for Choice Scarf users and forces Choice item users to lock into a move (previous wording was unclear as all scarfers outspeed mgar, so it can't sub safely on them; hopefully this is what you meant). It also allows Mega Gengar to escape from Pursuit users, (AC) and play around a weakened Yveltal's Sucker Punch, (AC) Finally, it enables Mega Gengar to and avoid debilitating status – e.g. such as Nuzzle from Smeargle. Focus Blast removes Tyranitar and improves the matchup against Extreme Killer Arceus, Arceus-Dark, and Ferrothorn. Destiny Bond can allow for a trade with a problematic Pokemon (RC) and is generally easy to utilize owing to Mega Gengar's frailty, though the move is somewhat reliant on prediction. It is also Mega Gengar's best tool against would-be checks such as Yveltal and Primal Kyogre that it cannot otherwise threaten. Finally, it allows Mega Gengar to situationally serve as a check to certain setup sweepers such as Calm Mind Arceus formes.

Set Details
========
Maximum Speed investment with a positive Timid nature allows Mega Gengar to outspeed Ultra Necrozma and anything slower. Maximum Special Attack investment in tandem with a potent STAB combination in Shadow Ball and Sludge Wave allows ("x combined with / in tandem with y" is treated as a singular noun) it to OHKO threats like Ultra Necrozma and unboosted Xerneas (RC) while dealing and deal massive damage to support Arceus-Fairy. Likewise, support Tyranitar is always OHKOed by Focus Blast. (don't go too in-depth here; you already covered this in moves) Gengarite is required for Mega Evolution.

Usage Tips
========
Owing to its fragility, Mega Gengar should usually not be switched into attacks excluding weak resisted hits like support Arceus-Fairy's Judgment and Arceus-Poison's Poison Jab (remove parentheses). Rely on free switches, double switches, or, rarely, support from pivots such as Magearna and Yveltal to get it into play. It can also be brought in on a predicted use of Toxic from support Arceus formes or walls, but this is risky. Mega Gengar should use its positive matchup against several common support Arceus formes, most notably Arceus-Fairy and Arceus-Poison, to break the defensive backbone of teams that lack other answers to threatening sweepers such as Zygarde-C and Marshadow. If using Destiny Bond, assess early-game which problematic member of the opponent's team should be removed by Destiny Bond early on in the match (moved; i assume you were trying to say "assess early-game" rather than "remove with dbond early-game") (RC) and what needs to can be eliminated by coverage. Try to preserve Mega Gengar to check the former, as Destiny Bond can potentially remove a threat that has a strongly positive matchup against the Mega Gengar's team as a whole. Be very careful in revealing Destiny Bond and err on the side of delaying its use, as often enough, (AC) unsuspecting opponents will assume that Mega Gengar will not stay in against a check (RC) and are thus inclined to set up, (AC) or set entry hazards, (AC) and or use other status moves. Taunt in conjunction with Destiny Bond can remedy this, but requires a risky prediction. Use Substitute to stall out residual damage (optional: [comma] such as from Toxic or Leech Seed), and also to gain an extra turn of Life Orb recoil on some threats that require chip damage to be KOed, such as Mega Rayquaza rack up Life Orb recoil and Special Defense drops on Mega Rayquaza (made this about mray specifically since mgar does not want to stay in on other lo users such as yveltal and marsh. drops are important to mention too since they let you trap banded mray). Mega Gengar's efficacy increases dramatically upon scouting the opponent's sets. For example, while Ferrothorn is normally able to check Mega Gengar due to Gyro Ball 2HKOing it, sets that have been shown to forego this move for Grass-type coverage or otherwise can be trapped and eliminated. (idk how true this is. mgar still gets annoyed by leech and takes a lot from whip, enough to break sub, and it can't 2hko ferrothorn without focus blast) Conversely, coverage moves such as Earth Power or and Roar on support Arceus formes result in a losing matchup; be sure to have teammates that take advantage of the loss in utility that these Pokemon trade for the ability to handle Mega Gengar with your team (moved for ambiguity). (this is a bit abstract, so it might help to include some examples of such teammates) It is important to be extremely cautious in the use of Mega Gengar if the opponent has a Pursuit trapper such as Tyranitar, as a single well-timed double switch can immediately result in Mega Gengar's removal. If the opponent makes a move that is seemingly a mistake against a team utilizing Mega Gengar, it is likely a lure and should not be capitalized on immediately. Substitute can be used on the turn Gengar Mega Evolves to ensure safety in such a matchup. Note that Focus Blast variants of Mega Gengar can be used effectively to lure and KO one of its common Pursuit trappers in Tyranitar.

Team Options
========
Mega Gengar can be tailored to support almost every sweeper in the tier depending on the team's need. Defensive Zygarde has excellent defensive synergy with Mega Gengar, providing a switch-in for the likes of Ho-Oh and Primal Groudon while appreciating the removal of Fairy-types. Mega Gengar can also handle Choice Banded and mixed variants of Mega Rayquaza, which threaten to break through Zygarde. In a similar vein, the Dragon Dance variant of Zygarde appreciates the removal of its primary checks in support Arceus-Fairy and Ice Beam Arceus-Water lacking Judgment (ice beam doesn't imply no judgment). Taunt from Mega Gengar also enables it to set up on targets like support Arceus-Poison that would otherwise cripple it with status. (i don't know if this is the best example; if you have taunt and you've trapped poisonceus, then wouldn't you just kill it with mgar?) Zygarde may also use Thousand Waves to trap Fairy-type switch-ins, thereby allowing Mega Gengar to safely eliminate them without fearing a potential double switch. (remove this sentence imo; twaves is not mentioned on the analysis, and this strategy doesn't work for geo/scarf xern) Marshadow appreciates the removal of support Arceus formes such as Arceus-Poison and Arceus-Fairy. Yveltal checks Marshadow and appreciates the removal of its Fairy-type checks, which it effectively lures. It may also provide U-turn support to safely bring Mega Gengar into play. Entry hazard setters such as Ferrothorn appreciate this set's ability to prevent Defog via Taunt (remove parentheses) and its good matchup against several common Defoggers (RC) such as support Arceus formes. Ferrothorn and Celesteela can also situationally provide Leech Seed support for Mega Gengar, thereby allowing it to stall out certain threats such as Calm Mind Arceus formes in conjunction with Taunt and Substitute. Arceus-Fairy and Xerneas can check problematic Pokemon such as Yveltal, Arceus-Dark, and Marshadow for Mega Gengar. Geomancy Xerneas will also appreciates one of its common checks in Arceus-Poison being disposed of. Ho-Oh walls support Arceus-Ground and Calm Mind Arceus-Steel, both of which are difficult for Mega Gengar to take on.

[SET]
name: Status Inducer
move 1: Hex
move 2: Sludge Bomb
move 3: Will-O-Wisp
move 4: Taunt / Substitute
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Hex doubles in Base Power against statused foes (RC) and is capable of 2HKOing statused support Arceus formes, Ferrothorn, and Zygarde-C (this is not true, for the defensive set at least). It should be noted that unboosted Hex falls short of an OHKO on Ultra Necrozma. Sludge Bomb complements Hex well with a significant chance to poison foes, while maintaining Mega Gengar's ability to remove Fairy-types and deal significant damage to unstatused opponents foes. Will-O-Wisp cripples prominent physical attackers and gives Mega Gengar a reliable method to boost the power of Hex. It also allows for the removal of Arceus-Poison and specially defensive Necrozma-DM, both of which are both 2HKOed by boosted Hex and can't OHKO Mega Gengar once burned. Taunt shuts down passive Pokemon (RC) and is also particularly ("also" implies they're different things, but these fall under the same category) useful against clerics such as Blissey. Substitute, in addition to its usual roles of helping Mega Gengar scout switch-ins and avoid Pursuit trapping, also allows it to capitalize on status support (RC) e.g. such as free turns created by full paralysis.

Set Details
========
Maximum Speed and Special Attack investment are required to make full use of Mega Gengar's offensive potential. Gengarite is required to Mega Evolve.

Usage Tips
========
Sludge Bomb can be used in an attempt to poison foes like Primal Groudon, Ho-Oh, and Zygarde-C in situations where this is safe, such as when Mega Gengar is behind a Substitute. Mega Gengar's teammates should aggressively inflict status on enemy Pokemon to allow for liberal use of boosted Hex. Specific support Arceus formes such as Arceus-Poison and Arceus-Water are prime targets for this set and are easily eliminated upon being statused. Besides directly boosting the power of Hex, Will-O-Wisp significantly reduces the damage Mega Gengar takes from some weaker physical hits, allowing it to stay in on certain threats it would otherwise be unable to handle. These hits include support Necrozma Dusk-Mane's Necrozma-DM's Sunsteel Strike and Ferrothorn's Power Whip&mdash;the latter move will not break Mega Gengar's Substitutes after a burn. While this Mega Gengar variant has room to play more aggressively with attempting to directly trap support Necrozma Dusk-Mane Necrozma-DM, one should be careful of Earthquake in this specific matchup. (not really; you live a burned z move from full, which does way more than a burned earthquake. i don't think this sentence is necessary here, it's more relevant for the sub + disable set) One can also pivot Mega Gengar into foes that utilize Rest for recovery, (AC) notably Zygarde-C and Primal Kyogre (remove parentheses), (AC) and inflict massive damage with Hex. (these are shaky examples; zygc is not 2hkoed by hex so you have to switch in on the exact turn they rest. ogre usually has sleep talk / calm mind alongside rest and is specifically ev'd to survive 2 hexes) In certain matchups, (AC) Will-O-Wisp can be used to attempt to burn Pursuit trappers on the switch when Gengar Mega Evolves.

Team Options
========
Defensive Zygarde is a premiere partner for Mega Gengar; it spreads status of its own via Glare or Toxic, (AC) thus boosting the power of Hex (remove parentheses), and appreciates the removal of Arceus-Fairy and Xerneas. In return, Mega Gengar appreciates a switch-in for the likes of Primal Groudon and Marshadow. Dragon Dance Zygarde can paralyze foes as well and will finds it easier to set up on targets that have been burned or otherwise crippled. Similarly, Ho-Oh has a significant chance to inflict burns through Sacred Fire, and walls support Arceus-Ground and Calm Mind Arceus-Steel, which are otherwise able to eliminate Mega Gengar with ease (not necessarily in steelceus' case). Marshadow appreciates the removal of its common checks in Arceus-Poison and Arceus-Fairy. The Marshadium (RH)Z set may also find additional setup opportunities on targets that have been burned by Will-O-Wisp. Geomancy Xerneas is another example of a sweeper for which Will-O-Wisp support can possibly provide a more favorable setup condition. Mega Gengar is also capable of outright eliminating some of the common checks to Xerneas, namely Arceus-Poison and support Necrozma-DM. Spikes support from the likes of Ferrothorn and Skarmory in conjunction with potential Sludge Bomb poisoning can accumulate considerable chip damage on foes. Likewise, Stealth Rock support from Primal Groudon or and Arceus formes inflicts significant damage to Yveltal that attempt to revenge kill Mega Gengar. Miscellaneous status users such as various support Arceus formes and support Primal Groudon prove useful in supporting this Mega Gengar variant as well. The latter is also capable of checking boosted Xerneas and Primal Kyogre, both of which can break through Mega Gengar. Offensive Primal Groudon variants can lure support Arceus-Water for Mega Gengar as well.

[SET]
name: Perish Trapper
move 1: Perish Song
move 2: Substitute
move 3: Disable
move 4: Shadow Ball / Sludge Bomb
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Perish Song synergizes with Shadow Tag to guarantee the removal of a passive foe. It can also put problematic sweepers or the last member of a team on a timer, preventing them from otherwise winning in some instances. Substitute helps stall for Perish Song turns and shields Mega Gengar from status. It can also be used to waste a predicted Z-Move. Disable prevents the foe from accessing its most recently (RH)used move (RC) and, in conjunction with Substitute, allows Gengar to easily remove slower mono-attackers such as certain support Arceus formes and Choice-locked Pokemon. It may also provide a setup opportunity for a teammate by locking a trapped foe out of a threatening move. Shadow Ball allows Mega Gengar to retain the ability to revenge kill certain dangerous offensive threats that are otherwise difficult to stall out with Perish Song, such as Ultra Necrozma. Sludge Bomb can be used in its place to immediately eliminate Fairy-types like Xerneas and Arceus-Fairy, (AC) preventing Defog from the latter (remove parentheses).

Set Details
========
Maximum Speed and Special Attack investment allow Mega Gengar to outspeed and OHKO Ultra Necrozma. Gengarite is required to Mega Evolve.

Usage Tips
========
This Mega Gengar variant has the ability to easily overcome Arceus-Dark and defensive Yveltal, which are normally able to break through check (optional) it. When using this set, luring them by setting a Substitute against a target typically forced out by Mega Gengar can prove effective. Note that Yveltal often carries Choice Scarf or Life Orb, which should be scouted for prior to attempting to trap it. Against a slower Choice item users (made plural for consistency), use Disable immediately. Against mono-attackers or (redundant) foes that have only one way to significantly damage Mega Gengar (remove parentheses), set a Substitute prior to the use of Disable to lure force the use of the appropriate move. Afterwards, it is generally safe to use Perish Song (RC) unless you suspect the opponent foe is a Z-Move user. Note that early-(AH)game, Mega Gengar will typically want to switch out on the turn prior to the Perish counter expiring in order to avoid fainting. This must be done with some care, as the trapped target can cripple the switch-in with a status affliction or otherwise by other means and then freely go to a check upon fainting, leading to a massive loss in momentum. When choosing to switch Mega Gengar out on the turn the Perish counter reaches zero, make a careful analysis to determine whether this is in fact worthwhile, or whether trading Mega Gengar with the immediate threat instead will better preserve momentum. Take care in scouting for potential coverage options on otherwise easily trappable targets, (AC) e.g. such as Earth Power on Arceus-Poison and phazing moves on support Arceus formes and mono-attacking Primal Groudon and (i don't think this mgar set ever traps pdon; if it's not running roar then its running some secondary attacking move) Ho-Oh (remove parentheses). In particular, be very careful of potential Z-Move users, as these Z-Moves ignore their base move being disabled. The most common targets for this set that often run a Z-Move are Arceus-Water and support Necrozma Dusk-Mane Necrozma-DM&mdash;telltale signs of this are Liquidation on Arceus-Water and a lack of Leftovers recovery on Necrozma Dusk-Mane Necrozma-DM. These threats can be handled by setting an extra Substitute after their base attacking move has been disabled. (you should mention that there is a mind game here, since they can predict disable and go immediately for the z-move on that turn) Additionally, this set can remove most variants of Ferrothorn, but it will likely accumulate multiple layers of entry hazards in the process, usually necessitating Defog support from a partner. It should be noted that the lack of Taunt on this set means that phazers like Ho-Oh, Lugia, (AC) and Skarmory cannot be trapped stalled out with Perish Song, though they the latter two take heavy damage from Shadow Ball. It is also important to keep in mind that if Disable is used prior to Perish Song, the foe will not be disabled on the last turn of the counter (RC) and can therefore proceed to hit the switch-in hard on the turn it faints.

Team Options
========
Entry hazard setters such as Primal Groudon and Ferrothorn appreciate the removal of almost every common Defogger in the tier. One of these, Arceus-Water, is often employed as the primary check to offensive Primal Groudon sets as well. The removal of Ferrothorn enables Primal Kyogre to more easily dismantle the defensive core of balance teams. Zygarde-C appreciates the elimination of its usual checks in Arceus-Fairy and Arceus-Water. Ultra Necrozma benefits from the removal of its common checks in defensive Yveltal and Arceus-Dark. These particular threats are very easily lured by Mega Gengar, leading to excellent synergy between Ultra Necrozma and this set. Offensive Lunala also appreciates the removal of these two threats as well, as they are often the primary dedicated checks to it on a typical team. This set easily eliminates Arceus-Poison and support Necrozma-DM, two common checks to Geomancy Xerneas. This aids greatly in facilitating a Xerneas sweep during the late-(AH)game.

[STRATEGY COMMENTS]
Other Options
=============
Mega Gengar possesses a number of esoteric coverage options that improve its matchup against specific threats. Thunder 2HKOes Yveltal and Primal Kyogre and deals heavy damage to Ho-Oh, while Hidden Power Ice can KOes base forme Zygarde after Stealth Rock damage. Icy Wind is a weaker alternative to Hidden Power Ice that additionally provides speed control, which can prove useful against healthy Dragon Dance variants of Mega Rayquaza and Zygarde that try to set up on Mega Gengar. However, these options are difficult to fit. One can opt for various mono-attacking sets in conjunction with Mega Gengar's plethora of utility options aside from the mentioned Perish Song set. A set utilizing Taunt, Substitute, and Destiny Bond together Taunt / Substitute / Destiny Bond / Shadow Ball or Sludge Bomb allows for more reliable use of Destiny Bond while maintaining Mega Gengar's general utility with Substitute. Additionally, one can opt for Disable over a coverage move; this trades coverage for the ability to remove slower mono-attackers. Toxic can be used on the status-inducing set to cripple several of Mega Gengar's common checks that are immune to or do not mind Will-O-Wisp, such as Ho-Oh. Hypnosis is yet another status-inducing option, and is quite difficult to handle should it hit its targets. Its inconsistency, however, should be stressed. Reflect Type prevents Mega Gengar from being Pursuit trapped and gives it a positive matchup against Ferrothorn variants carrying Gyro Ball. Protect guarantees safe Mega Evolution against foes like Marshadow and Choice Scarf Yveltal, and can be used to help stall out Perish Song turns. However, it is usually outclassed by the other mentioned utility options (RC) and is punished more by mispredictions than Substitute. Pain Split is an option for defensive teams that wish to extend Mega Gengar's longevity. Unfortunately, this move is of questionable overall value relative to Mega Gengar's other utility options. Finally, Taunt can be used over Shadow Ball or Sludge Bomb on the Perish Trapper set to make Mega Gengar an extremely potent stallbreaker, as it can even eliminate phazers like defensive Ho-Oh with proper prediction. However, this makes the set overly passive and often useless in other matchups, and is therefore not generally recommended.

Checks and Counters
===================
As Shadow Tag allows Mega Gengar to force matchups, it in fact has no counters. Its checks are generally comprised of revenge killers and Pokemon that cannot be trapped.

**Faster Threats and Priority**: Most of the tier's metagame's Choice Scarf users such as Mega Rayquaza and Yveltal outspeed Mega Gengar and easily eliminate it owing to its fragility. While Mega Gengar is immune to Extreme Speed, other forms of priority, most notably from Marshadow and Yveltal, easily KO it. (remove line break) Mega Mewtwo (RH)Y and Deoxys-A are examples of the few viable Pokemon that naturally outspeed Mega Gengar and therefore easily eliminate it, though they do not serve as a suitable switch-ins on the turn Gengar Mega Evolves. Even base forme Mewtwo can often force Mega Gengar out, as it the latter usually cannot afford to risk a Speed tie.

**Pursuit Trappers**: Pursuit users such as Deoxys-A, Marshadow, Muk-Alola Alolan Muk, and Tyranitar (it's strange to mention ttar last; i would change the order to ttar / marsh / deoa / muk) can eliminate a fleeing Mega Gengar, (AC) though Mega Gengar must lack Focus Blast in Tyranitar's case (remove parentheses). Note that Marshadow must make a risky prediction, especially if its set has been scouted beforehand the Mega Gengar user is aware that it has Pursuit (optional). Additionally, Mega Gengar is capable of eliminating the slower Pursuit trappers with Destiny Bond.

**Bulky Offensive Threats**: The likes of Primal Kyogre, Zygarde-C, Ho-Oh, and specially defensive Primal Groudon all escape the 2HKO from any of Mega Gengar's commonly seen coverage moves and easily remove it with their STAB moves. They can only be overcome by the use of Destiny Bond, (AC) boosted Hex, (AC) or, (AC) in some cases, (AC) the Perish Song set in some cases. Arceus-Ground and Arceus-Dark may also be are also able to accomplish this, but are shakier checks&mdash;Mega Gengar often runs coverage specifically to handle Arceus-Dark specifically.

**Immunity Pokemon that are Immune to Shadow Tag**: Ghost-types are immune to Shadow Tag, and therefore Mega Gengar proves ineffective in eliminating passive Ghost-type Pokemon such as Giratina. Defensive teams also have the option of equipping passive walls with Shed Shell in order to escape from Shadow Tag; pivoting abilities moves such as Magearna's Volt Switch accomplish the same.

[CREDITS]
- Written by: [[Zayele, 471586]]
- Quality checked by: [[pichus, 374620], [ice-master-523, 464176]]
- Grammar checked by: [[, ], [, ]]
 

lotiasite

undedgy
is a Forum Moderatoris a Top Contributoris a Smogon Media Contributoris a Social Media Contributor Alumnus
GP 2/2

[OVERVIEW]
Mega Gengar is the preeminent trapper in Anything Goes and, as such, cannot be ignored when building and playing in the metagame. Its incredible versatility and plethora of utility options give it the unique ability to support essentially all relevant sweepers in the metagame by removing their checks, such as Arceus-Fairy for Zygarde and Marshadow. Its typing and excellent base 130 Speed in tandem with its base 170 Special Attack allow it to eliminate several notable threats, such as non-Choice Scarf Mega Rayquaza, Ultra Necrozma, and Arceus formes. It also has an immunity to Extreme Speed, blocks Rapid Spin, and easily switches into Toxic-reliant walls like Lugia and Skarmory. An immediate offensive presence and a more consistent performance against offense serve to distinguish Mega Gengar from the metagame's other prominent trapper in Gothitelle. A movepool that includes a wide array of utility options allows Mega Gengar to bypass many of its would-be checks. However, its extreme fragility and lack of reliable recovery means that Mega Gengar can sometimes find difficulty coming into play versus foes like support Arceus formes, Ferrothorn, and Celesteela, and is often reliant on prediction, and is much more vulnerable to being Pursuit trapped when compared to Gothitelle. There arises a question of opportunity cost in the use of Mega Gengar, as it prevents one from using other Mega Evolutions such as Mega Rayquaza in particular, and therefore it cannot fit into every build. Lastly, Mega Gengar's prevalence in Anything Goes means that certain otherwise trappable Pokemon sometimes elect to run coverage to handle it, while defensive teams tend to equip their passive walls with Shed Shell or use Pursuit trappers to hinder its effectiveness.

[SET]
name: Offensive Trapper
move 1: Shadow Ball
move 2: Sludge Wave
move 3: Taunt / Focus Blast
move 4: Substitute / Taunt / Destiny Bond
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Shadow Ball eliminates Ultra Necrozma and deals significant damage to the likes of Necrozma-DM, Lugia, and Primal Groudon. Sludge Wave eliminates Fairy-types, most notably Arceus-Fairy and Xerneas, and is Mega Gengar's strongest STAB move. Taunt prevents Mega Gengar from being used as setup fodder, allows it to have a positive matchup against passive Pokemon, and prevents it from being phazed by Roar or Whirlwind from Pokemon like Lugia. It is also required to successfully eliminate the common Arceus-Poison. Substitute allows Mega Gengar to scout the opponent's initial switch-in to it on the turn it Mega Evolves and forces Choice item users to lock into a move. It also allows Mega Gengar to escape from Pursuit users, play around a weakened Yveltal's Sucker Punch, and avoid debilitating status such as Nuzzle from Smeargle. Focus Blast removes Tyranitar and improves the matchup against Extreme Killer Arceus, Arceus-Dark, and Ferrothorn. Destiny Bond can allow for a trade with a problematic Pokemon and is generally easy to utilize owing to Mega Gengar's frailty, though the move is somewhat reliant on prediction. It is also Mega Gengar's best tool against would-be checks such as Yveltal and Primal Kyogre that it cannot otherwise threaten. Finally, it allows Mega Gengar to situationally serve as a check to certain setup sweepers such as Calm Mind Arceus formes.

Set Details
========
Maximum Speed investment with a Timid nature allows Mega Gengar to outspeed Ultra Necrozma and anything slower. Maximum Special Attack investment in tandem with a potent STAB combination in Shadow Ball and Sludge Wave allows it to OHKO threats like Ultra Necrozma and unboosted Xerneas while dealing massive damage to support Arceus-Fairy. Likewise, support Tyranitar is always OHKOed by Focus Blast. Gengarite is required for Mega Evolution. Probably mention shadow tag here & in the the other set details.

Usage Tips
========
Owing to its fragility, Mega Gengar should usually not be switched into attacks, excluding weak resisted hits like support Arceus-Fairy's Judgment and Arceus-Poison's Poison Jab. Rely on free switches, double switches, or, rarely, support from pivots such as Magearna and Yveltal to get it into play. It can also be brought in on a predicted use of Toxic from support Arceus formes or walls, but this is risky. Mega Gengar should use its positive matchup against several common support Arceus formes, most notably Arceus-Fairy and Arceus-Poison, to break the defensive backbone of teams that lack other answers to threatening sweepers such as Zygarde-C and Marshadow. If using Destiny Bond, assess early-game which problematic member of the opponent's team should be removed by Destiny Bond and what can be eliminated by coverage. Try to preserve Mega Gengar to check the former, as Destiny Bond can potentially remove a threat that has a strongly positive matchup against Mega Gengar's team as a whole. Be very careful in revealing Destiny Bond and err on the side of delaying its use, as often enough, unsuspecting opponents will assume that Mega Gengar will not stay in against a check and are thus inclined to set up, set entry hazards, or use other status moves. Taunt in conjunction with Destiny Bond can remedy this, but requires a risky prediction. Use Substitute to stall out residual damage, such as from Toxic or Leech Seed, and also to rack up Life Orb recoil and Special Defense drops on Mega Rayquaza. Mega Gengar's efficacy increases dramatically upon scouting the opponent's sets. For example, while Ferrothorn is normally able to check Mega Gengar due to Gyro Ball 2HKOing it, sets that have been shown to forego this move for Grass-type coverage or otherwise can be trapped and eliminated by Focus Blast. Conversely, coverage moves such as Earth Power and Roar on support Arceus formes result in a losing matchup; be sure to have teammates that take advantage of the loss in utility that these Pokemon trade for the ability to handle Mega Gengar. For example, Earth Power variants of Arceus-Poison typically cannot fit Stealth Rock, which is advantageous for Defog users that are threatened by it such as Arceus-Fairy. It is important to be extremely cautious in the use of Mega Gengar if the opponent has a Pursuit trapper such as Tyranitar, as a single well-timed double switch can immediately result in Mega Gengar's removal. If the opponent makes a move that is seemingly a mistake against a team utilizing Mega Gengar, it is likely a lure and should not be capitalized on immediately. Substitute can be used on the turn Gengar Mega Evolves to ensure safety in such a matchup. Note that Focus Blast variants of Mega Gengar can be used effectively to lure and KO one of its common Pursuit trappers in Tyranitar.

Team Options
========
Mega Gengar can be tailored to support almost every sweeper in the tier depending on the team's need. Defensive Zygarde has excellent defensive synergy with Mega Gengar, providing a switch-in for the likes of Ho-Oh and Primal Groudon while appreciating the removal of Fairy-types. Mega Gengar can also handle Choice Band and mixed variants of Mega Rayquaza, which threaten to break through Zygarde. In a similar vein, Dragon Dance Zygarde appreciates the removal of its primary checks in support Arceus-Fairy and Arceus-Water lacking Judgment. Taunt from Mega Gengar also enables it to set up on targets like support Arceus-Poison that would otherwise cripple it with status. Zygarde may also use Thousand Waves to trap support Arceus-Fairy on the switch, thereby allowing Mega Gengar to safely eliminate it without fearing a potential double switch. Marshadow appreciates the removal of support Arceus formes such as Arceus-Poison and Arceus-Fairy. Yveltal checks Marshadow and appreciates the removal of its Fairy-type checks, which it effectively lures. It may also provide U-turn support to safely bring Mega Gengar into play. Entry hazard setters such as Ferrothorn appreciate this set's ability to prevent Defog via Taunt and its good matchup against several common Defoggers such as support Arceus formes. Ferrothorn and Celesteela can also situationally provide Leech Seed support for Mega Gengar, thereby allowing it to stall out certain threats such as Calm Mind Arceus formes in conjunction with Taunt and Substitute. Arceus-Fairy and Xerneas can check problematic Pokemon such as Yveltal, Arceus-Dark, and Marshadow for Mega Gengar. Geomancy Xerneas also appreciates one of its common checks in Arceus-Poison being disposed of. Mega Gengar can also lure and use Taunt on Arceus-Dark, thereby allowing Xerneas to set up on it without fear of Toxic or Perish Song. Ho-Oh walls support Arceus-Ground and Calm Mind Arceus-Steel, both of which are difficult for Mega Gengar to take on.

[SET]
name: Status Inducer
move 1: Hex
move 2: Sludge Bomb
move 3: Will-O-Wisp
move 4: Taunt / Substitute
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Hex doubles in Base Power against statused foes and is capable of 2HKOing statused support Arceus formes, Ferrothorn, and offensive Zygarde-C. It should be noted that unboosted Hex falls short of an OHKO on Ultra Necrozma. Sludge Bomb complements Hex well with a significant chance to poison foes, (RC) while maintaining Mega Gengar's ability to remove Fairy-types and deal significant greater damage to unstatused foes. Will-O-Wisp cripples prominent physical attackers and gives Mega Gengar a reliable method to boost the power of Hex. It also allows for the removal of Arceus-Poison and specially defensive Necrozma-DM, both of which are 2HKOed by boosted Hex and can't OHKO Mega Gengar once burned. Taunt shuts down passive Pokemon and is particularly useful against clerics such as Blissey. Substitute, in addition to its usual roles of helping Mega Gengar scout switch-ins and avoid Pursuit trapping, allows it to capitalize on status support such as free turns created by full paralysis.

Set Details
========
Maximum Speed and Special Attack investment are required to make full use of Mega Gengar's offensive potential. Gengarite is required to Mega Evolve.

Usage Tips
========
Sludge Bomb can be used in an attempt to poison foes like Primal Groudon, Ho-Oh, and Zygarde-C in situations where this is safe, such as when Mega Gengar is behind a Substitute. Mega Gengar's teammates should aggressively inflict status on enemy Pokemon to allow for liberal use of boosted Hex. Specific support Arceus formes such as Arceus-Poison and Arceus-Water are prime targets for this set and are easily eliminated upon being statused. Besides directly boosting the power of Hex, Will-O-Wisp significantly reduces the damage Mega Gengar takes from some weaker physical hits, allowing it to stay in on certain threats it would otherwise be unable to handle. These hits include support Necrozma-DM's Sunsteel Strike and Ferrothorn's Power Whip&mdash;the latter move will not break Mega Gengar's Substitute after a burn. While this Mega Gengar variant has room to play more aggressively with attempting to directly trap support Necrozma-DM, one should be careful of Earthquake in this specific matchup. One can also pivot Mega Gengar into foes that utilize Rest for recovery, notably Zygarde-C and Primal Kyogre, and inflict massive damage with Hex. In certain matchups, Will-O-Wisp can be used to attempt to burn Pursuit trappers on the switch when Gengar Mega Evolves.

Team Options
========
Defensive Zygarde is a premier partner for Mega Gengar; it spreads status of its own via Glare or Toxic, thus boosting the power of Hex, and appreciates the removal of Arceus-Fairy and Xerneas. In return, Mega Gengar appreciates a switch-in for the likes of Primal Groudon and Marshadow. Dragon Dance Zygarde can paralyze foes as well and finds it easier to set up on targets that have been burned or otherwise crippled. Similarly, Ho-Oh has a significant chance to inflict burns through Sacred Fire, (RC) and walls support Arceus-Ground and Calm Mind Arceus-Steel, which are otherwise able to eliminate Mega Gengar if unstatused. Marshadow appreciates the removal of its common checks in Arceus-Poison and Arceus-Fairy. The Marshadium Z set may also find additional setup opportunities on targets that have been burned by Will-O-Wisp. Geomancy Xerneas is another example of a sweeper for which Will-O-Wisp support can possibly provide a more favorable setup condition. Mega Gengar is also capable of outright eliminating some of the common checks to Xerneas, namely Arceus-Poison and support Necrozma-DM. Spikes support from the likes of Ferrothorn and Skarmory in conjunction with potential Sludge Bomb poisoning can accumulate considerable chip damage on foes. Likewise, Stealth Rock support from Primal Groudon and Arceus formes inflicts significant damage to Yveltal that attempt to revenge kill Mega Gengar. Miscellaneous status users such as various support Arceus formes and support Primal Groudon prove useful in supporting this Mega Gengar variant as well. The latter is also capable of checking boosted Xerneas and Primal Kyogre, both of which can break through Mega Gengar. Offensive Primal Groudon variants can lure in support Arceus-Water for Mega Gengar as well.

[SET]
name: Perish Trapper
move 1: Perish Song
move 2: Substitute
move 3: Disable
move 4: Shadow Ball / Sludge Bomb
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Perish Song synergizes with Shadow Tag to guarantee the removal of a passive foe. It can also put problematic sweepers or the last member of a team on a timer, preventing them from otherwise winning in some instances. Substitute helps stall for Perish Song turns and shields Mega Gengar from status. It can also be used to waste a predicted Z-Move. Disable prevents the foe from accessing its most recently used move and, in conjunction with Substitute, allows Mega Gengar to easily remove slower mono-attackers such as certain support Arceus formes and Choice-locked Pokemon. It may also provide a setup opportunity for a teammate by locking a trapped foe out of a threatening move. Shadow Ball allows Mega Gengar to revenge kill certain dangerous offensive threats that are difficult to stall out with Perish Song, such as Ultra Necrozma. Sludge Bomb can be used in its place to immediately eliminate Fairy-types like Xerneas and Arceus-Fairy, preventing Defog from the latter.

Set Details
========
Maximum Speed and Special Attack investment allow Mega Gengar to outspeed and nearly always OHKO Ultra Necrozma. Gengarite is required to Mega Evolve.

Usage Tips
========
This Mega Gengar variant has the ability to easily overcome Arceus-Dark and defensive Yveltal, which are normally able to check it. When using this set, luring them byin and setting a Substitute against a target typically forced out by Mega Gengar can prove effective. Note that Yveltal often carries Choice Scarf or Life Orb, which should be scouted for prior to attempting to trap it. Against slower Choice item users, use Disable immediately. Against foes that have only one way to significantly damage Mega Gengar, set a Substitute prior to the use of Disable to force the use of the appropriate move. Afterwards, it is generally safe to use Perish Song unless you suspect the foe is a Z-Move user. Note that early-game, Mega Gengar will typically want to switch out on the turn prior to the Perish Song counter expiring in order to avoid fainting. This must be done with some care, as the trapped target can cripple the switch-in with a status affliction or by other means and then freely go to a check upon fainting, leading to a massive loss in momentum. When choosing to switch Mega Gengar out on the turn the Perish Song counter reaches zero, make a careful analysis to determine whether this is in fact worthwhile, or whether trading Mega Gengar with the immediate threat instead will better preserve momentum. Take care in scouting for potential coverage options on otherwise easily trappable targets, such as Earth Power on Arceus-Poison and , (AC) phazing moves on support Arceus formes and Ho-Oh, (AC) and Earthquake on Necrozma-DM. In particular, be very careful of potential Z-Move users, as Z-Moves ignore their base move being disabled. The most common targets for this set that often run a Z-Move are Arceus-Water and support Necrozma-DM&mdash;telltale signs of this are Liquidation on Arceus-Water and a lack of Leftovers recovery on Necrozma-DM. These threats can be handled by setting an extra Substitute after their base attacking move has been disabled. If Mega Gengar's set has been scouted beforehand, these threats may even predict Disable and immediately use their Z-Move, so exercise caution in these situations. Additionally, this set can remove most variants of Ferrothorn, but it will likely accumulate multiple layers of entry hazards in the process, usually necessitating Defog support from a partner. One should note that the lack of Taunt on this set means that phazers like Ho-Oh, Lugia, and Skarmory cannot be stalled out with Perish Song, though the latter two take heavy damage from Shadow Ball. It is also important to keep in mind that if Disable is used prior to Perish Song, the foe will not be disabled on the last turn of the counter and can therefore proceed to hit the switch-in hard on the turn it faints.

Team Options
========
Entry hazard setters such as Primal Groudon and Ferrothorn appreciate the removal of almost every common Defogger in the tier. One of these, Arceus-Water, is often employed as the primary check to offensive Primal Groudon sets as well. The removal of Ferrothorn enables Primal Kyogre to more easily dismantle the defensive core of balance teams. Zygarde-C appreciates the elimination of its usual checks in Arceus-Fairy and Arceus-Water. Ultra Necrozma benefits from the removal of its common checks in defensive Yveltal and Arceus-Dark. These particular threats are very easily lured in and KOed by Mega Gengar, leading to excellent synergy between Ultra Necrozma and this set. Offensive Lunala also appreciates the removal of these two threats as well, as they are often the primary checks to it on a typical team. This set easily eliminates Arceus-Poison and support Necrozma-DM, two common checks to Geomancy Xerneas. This aids greatly in facilitating a Xerneas sweep during the late-game.

[STRATEGY COMMENTS]
Other Options
=============
Mega Gengar possesses a number of esoteric coverage options that improve its matchup against specific threats. Thunder 2HKOes Yveltal, Primal Kyogre, and Celesteela and deals heavy damage to Ho-Oh, while Hidden Power Ice KOes base forme Zygarde after Stealth Rock damage. Icy Wind is a weaker alternative to Hidden Power Ice that additionally provides speed control, which can prove useful against healthy Dragon Dance variants of Mega Rayquaza and Zygarde that try to set up on Mega Gengar. However, these options are difficult to fit. One can opt for various mono-attacking sets in conjunction with Mega Gengar's plethora of utility options aside from the mentioned Perish Song set. A set utilizing Taunt / Substitute / Destiny Bond / Shadow Ball or Sludge Bomb allows for more reliable use of Destiny Bond while maintaining Mega Gengar's general utility with Substitute. Additionally, one can opt for Disable over a coverage move; this trades coverage for the ability to remove slower mono-attackers. Toxic can be used on the status-inducing set to cripple several of Mega Gengar's common checks that are immune to or do not mind Will-O-Wisp, such as Ho-Oh. Hypnosis is yet another status-inducing option, (RC) and is quite difficult to handle should it hit its targets. Its inconsistency, however, should be stressed. Reflect Type prevents Mega Gengar from being Pursuit trapped and gives it a positive matchup against Ferrothorn variants carrying Gyro Ball. Protect guarantees safe Mega Evolution against foes like Marshadow and Choice Scarf Yveltal, (RC) and can be used to help stall out Perish Song turns. However, it is usually outclassed by the other mentioned utility options and is punished more by mispredictions than Substitute. Pain Split is an option for defensive teams that wish to extend Mega Gengar's longevity. Unfortunately, this move is of questionable overall value relative to Mega Gengar's other utility options. Finally, Taunt can be used over Shadow Ball or Sludge Bomb on the Perish Trapper set to make Mega Gengar an extremely potent stallbreaker, as it can even eliminate phazers like defensive Ho-Oh with proper prediction. However, this makes the set overly passive and often useless in other matchups, (RC) and is therefore not generally recommended.

Checks and Counters
===================
As Shadow Tag allows Mega Gengar to force matchups, it in fact has no counters. Its checks are generally comprised of revenge killers and Pokemon that cannot be trapped.

**Faster Threats and Priority**: Most of the metagame's Choice Scarf users such as Mega Rayquaza and Yveltal outspeed Mega Gengar and easily eliminate it owing to its fragility. While Mega Gengar is immune to Extreme Speed, other forms of priority, most notably from Marshadow and Yveltal, easily KO it. Mega Mewtwo Y and Deoxys-A are examples of the few viable Pokemon that naturally outspeed Mega Gengar and therefore easily eliminate it, though they do not serve as suitable switch-ins on the turn Gengar Mega Evolves. Even base forme Mewtwo can force Mega Gengar out, as the latter usually cannot afford to risk a Speed tie.

**Pursuit Trappers**: Pursuit users such as Tyranitar, Marshadow, Deoxys-A, and Alolan Muk can eliminate a fleeing Mega Gengar, though Mega Gengar must lack Focus Blast in Tyranitar's case. Note that Marshadow must make a risky prediction, especially if the Mega Gengar user is aware that it carries Pursuit. Additionally, Mega Gengar is capable of eliminating slower Pursuit trappers with Destiny Bond.

**Bulky Offensive Threats**: The likes of Primal Kyogre, Zygarde-C, Ho-Oh, and specially defensive Primal Groudon all escape the 2HKO from any of Mega Gengar's commonly seen coverage moves and easily remove it with their STAB moves. They can only be overcome by the use of Destiny Bond, boosted Hex, or, in some cases, the Perish Song set. Arceus-Ground and Arceus-Dark are also able to accomplish this, (RC) but are shakier checks&mdash;Mega Gengar often runs coverage specifically to handle Arceus-Dark.

**Pokemon that are Immune to Shadow Tag**: Ghost-types are immune to Shadow Tag, and therefore Mega Gengar proves ineffective in eliminating passive Ghost-type Pokemon such as Giratina. Defensive teams also have the option of equipping passive walls with Shed Shell in order to escape from Shadow Tag; pivoting moves such as Magearna's Volt Switch accomplish the same.

[CREDITS]
- Written by: [[Zayele, 471586]]
- Quality checked by: [[pichus, 374620], [ice-master-523, 464176]]
- Grammar checked by: [[bigtalk, 466663], [lotiasite, 302985]]

Sorry for taking so long. Very good overall, biggest issue i noticed was with the comma before 'and'. commas only go before 'and' if there's it's splitting two independent clauses:
e.g. I went to the park, and I walked the dog. <-- both are independent clauses, so the comma is fine
I went to the park, and walked the dog. <-- the second clause is dependent, so the comma should be removed
 
GP 2/2

[OVERVIEW]
Mega Gengar is the preeminent trapper in Anything Goes and, as such, cannot be ignored when building and playing in the metagame. Its incredible versatility and plethora of utility options give it the unique ability to support essentially all relevant sweepers in the metagame by removing their checks, such as Arceus-Fairy for Zygarde and Marshadow. Its typing and excellent base 130 Speed in tandem with its base 170 Special Attack allow it to eliminate several notable threats, such as non-Choice Scarf Mega Rayquaza, Ultra Necrozma, and Arceus formes. It also has an immunity to Extreme Speed, blocks Rapid Spin, and easily switches into Toxic-reliant walls like Lugia and Skarmory. An immediate offensive presence and a more consistent performance against offense serve to distinguish Mega Gengar from the metagame's other prominent trapper in Gothitelle. A movepool that includes a wide array of utility options allows Mega Gengar to bypass many of its would-be checks. However, its extreme fragility and lack of reliable recovery means that Mega Gengar can sometimes find difficulty coming into play versus foes like support Arceus formes, Ferrothorn, and Celesteela, and is often reliant on prediction, and is much more vulnerable to being Pursuit trapped when compared to Gothitelle. There arises a question of opportunity cost in the use of Mega Gengar, as it prevents one from using other Mega Evolutions such as Mega Rayquaza in particular, and therefore it cannot fit into every build. Lastly, Mega Gengar's prevalence in Anything Goes means that certain otherwise trappable Pokemon sometimes elect to run coverage to handle it, while defensive teams tend to equip their passive walls with Shed Shell or use Pursuit trappers to hinder its effectiveness.

[SET]
name: Offensive Trapper
move 1: Shadow Ball
move 2: Sludge Wave
move 3: Taunt / Focus Blast
move 4: Substitute / Taunt / Destiny Bond
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Shadow Ball eliminates Ultra Necrozma and deals significant damage to the likes of Necrozma-DM, Lugia, and Primal Groudon. Sludge Wave eliminates Fairy-types, most notably Arceus-Fairy and Xerneas, and is Mega Gengar's strongest STAB move. Taunt prevents Mega Gengar from being used as setup fodder, allows it to have a positive matchup against passive Pokemon, and prevents it from being phazed by Roar or Whirlwind from Pokemon like Lugia. It is also required to successfully eliminate the common Arceus-Poison. Substitute allows Mega Gengar to scout the opponent's initial switch-in to it on the turn it Mega Evolves and forces Choice item users to lock into a move. It also allows Mega Gengar to escape from Pursuit users, play around a weakened Yveltal's Sucker Punch, and avoid debilitating status such as Nuzzle from Smeargle. Focus Blast removes Tyranitar and improves the matchup against Extreme Killer Arceus, Arceus-Dark, and Ferrothorn. Destiny Bond can allow for a trade with a problematic Pokemon and is generally easy to utilize owing to Mega Gengar's frailty, though the move is somewhat reliant on prediction. It is also Mega Gengar's best tool against would-be checks such as Yveltal and Primal Kyogre that it cannot otherwise threaten. Finally, it allows Mega Gengar to situationally serve as a check to certain setup sweepers such as Calm Mind Arceus formes.

Set Details
========
Maximum Speed investment with a Timid nature allows Mega Gengar to outspeed Ultra Necrozma and anything slower. Maximum Special Attack investment in tandem with a potent STAB combination in Shadow Ball and Sludge Wave allows it to OHKO threats like Ultra Necrozma and unboosted Xerneas while dealing massive damage to support Arceus-Fairy. Likewise, support Tyranitar is always OHKOed by Focus Blast. Gengarite is required for Mega Evolution. Probably mention shadow tag here & in the the other set details.

Usage Tips
========
Owing to its fragility, Mega Gengar should usually not be switched into attacks, excluding weak resisted hits like support Arceus-Fairy's Judgment and Arceus-Poison's Poison Jab. Rely on free switches, double switches, or, rarely, support from pivots such as Magearna and Yveltal to get it into play. It can also be brought in on a predicted use of Toxic from support Arceus formes or walls, but this is risky. Mega Gengar should use its positive matchup against several common support Arceus formes, most notably Arceus-Fairy and Arceus-Poison, to break the defensive backbone of teams that lack other answers to threatening sweepers such as Zygarde-C and Marshadow. If using Destiny Bond, assess early-game which problematic member of the opponent's team should be removed by Destiny Bond and what can be eliminated by coverage. Try to preserve Mega Gengar to check the former, as Destiny Bond can potentially remove a threat that has a strongly positive matchup against Mega Gengar's team as a whole. Be very careful in revealing Destiny Bond and err on the side of delaying its use, as often enough, unsuspecting opponents will assume that Mega Gengar will not stay in against a check and are thus inclined to set up, set entry hazards, or use other status moves. Taunt in conjunction with Destiny Bond can remedy this, but requires a risky prediction. Use Substitute to stall out residual damage, such as from Toxic or Leech Seed, and also to rack up Life Orb recoil and Special Defense drops on Mega Rayquaza. Mega Gengar's efficacy increases dramatically upon scouting the opponent's sets. For example, while Ferrothorn is normally able to check Mega Gengar due to Gyro Ball 2HKOing it, sets that have been shown to forego this move for Grass-type coverage or otherwise can be trapped and eliminated by Focus Blast. Conversely, coverage moves such as Earth Power and Roar on support Arceus formes result in a losing matchup; be sure to have teammates that take advantage of the loss in utility that these Pokemon trade for the ability to handle Mega Gengar. For example, Earth Power variants of Arceus-Poison typically cannot fit Stealth Rock, which is advantageous for Defog users that are threatened by it such as Arceus-Fairy. It is important to be extremely cautious in the use of Mega Gengar if the opponent has a Pursuit trapper such as Tyranitar, as a single well-timed double switch can immediately result in Mega Gengar's removal. If the opponent makes a move that is seemingly a mistake against a team utilizing Mega Gengar, it is likely a lure and should not be capitalized on immediately. Substitute can be used on the turn Gengar Mega Evolves to ensure safety in such a matchup. Note that Focus Blast variants of Mega Gengar can be used effectively to lure and KO one of its common Pursuit trappers in Tyranitar.

Team Options
========
Mega Gengar can be tailored to support almost every sweeper in the tier depending on the team's need. Defensive Zygarde has excellent defensive synergy with Mega Gengar, providing a switch-in for the likes of Ho-Oh and Primal Groudon while appreciating the removal of Fairy-types. Mega Gengar can also handle Choice Band and mixed variants of Mega Rayquaza, which threaten to break through Zygarde. In a similar vein, Dragon Dance Zygarde appreciates the removal of its primary checks in support Arceus-Fairy and Arceus-Water lacking Judgment. Taunt from Mega Gengar also enables it to set up on targets like support Arceus-Poison that would otherwise cripple it with status. Zygarde may also use Thousand Waves to trap support Arceus-Fairy on the switch, thereby allowing Mega Gengar to safely eliminate it without fearing a potential double switch. Marshadow appreciates the removal of support Arceus formes such as Arceus-Poison and Arceus-Fairy. Yveltal checks Marshadow and appreciates the removal of its Fairy-type checks, which it effectively lures. It may also provide U-turn support to safely bring Mega Gengar into play. Entry hazard setters such as Ferrothorn appreciate this set's ability to prevent Defog via Taunt and its good matchup against several common Defoggers such as support Arceus formes. Ferrothorn and Celesteela can also situationally provide Leech Seed support for Mega Gengar, thereby allowing it to stall out certain threats such as Calm Mind Arceus formes in conjunction with Taunt and Substitute. Arceus-Fairy and Xerneas can check problematic Pokemon such as Yveltal, Arceus-Dark, and Marshadow for Mega Gengar. Geomancy Xerneas also appreciates one of its common checks in Arceus-Poison being disposed of. Mega Gengar can also lure and use Taunt on Arceus-Dark, thereby allowing Xerneas to set up on it without fear of Toxic or Perish Song. Ho-Oh walls support Arceus-Ground and Calm Mind Arceus-Steel, both of which are difficult for Mega Gengar to take on.

[SET]
name: Status Inducer
move 1: Hex
move 2: Sludge Bomb
move 3: Will-O-Wisp
move 4: Taunt / Substitute
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Hex doubles in Base Power against statused foes and is capable of 2HKOing statused support Arceus formes, Ferrothorn, and offensive Zygarde-C. It should be noted that unboosted Hex falls short of an OHKO on Ultra Necrozma. Sludge Bomb complements Hex well with a significant chance to poison foes, (RC) while maintaining Mega Gengar's ability to remove Fairy-types and deal significant greater damage to unstatused foes. Will-O-Wisp cripples prominent physical attackers and gives Mega Gengar a reliable method to boost the power of Hex. It also allows for the removal of Arceus-Poison and specially defensive Necrozma-DM, both of which are 2HKOed by boosted Hex and can't OHKO Mega Gengar once burned. Taunt shuts down passive Pokemon and is particularly useful against clerics such as Blissey. Substitute, in addition to its usual roles of helping Mega Gengar scout switch-ins and avoid Pursuit trapping, allows it to capitalize on status support such as free turns created by full paralysis.

Set Details
========
Maximum Speed and Special Attack investment are required to make full use of Mega Gengar's offensive potential. Gengarite is required to Mega Evolve.

Usage Tips
========
Sludge Bomb can be used in an attempt to poison foes like Primal Groudon, Ho-Oh, and Zygarde-C in situations where this is safe, such as when Mega Gengar is behind a Substitute. Mega Gengar's teammates should aggressively inflict status on enemy Pokemon to allow for liberal use of boosted Hex. Specific support Arceus formes such as Arceus-Poison and Arceus-Water are prime targets for this set and are easily eliminated upon being statused. Besides directly boosting the power of Hex, Will-O-Wisp significantly reduces the damage Mega Gengar takes from some weaker physical hits, allowing it to stay in on certain threats it would otherwise be unable to handle. These hits include support Necrozma-DM's Sunsteel Strike and Ferrothorn's Power Whip&mdash;the latter move will not break Mega Gengar's Substitute after a burn. While this Mega Gengar variant has room to play more aggressively with attempting to directly trap support Necrozma-DM, one should be careful of Earthquake in this specific matchup. One can also pivot Mega Gengar into foes that utilize Rest for recovery, notably Zygarde-C and Primal Kyogre, and inflict massive damage with Hex. In certain matchups, Will-O-Wisp can be used to attempt to burn Pursuit trappers on the switch when Gengar Mega Evolves.

Team Options
========
Defensive Zygarde is a premier partner for Mega Gengar; it spreads status of its own via Glare or Toxic, thus boosting the power of Hex, and appreciates the removal of Arceus-Fairy and Xerneas. In return, Mega Gengar appreciates a switch-in for the likes of Primal Groudon and Marshadow. Dragon Dance Zygarde can paralyze foes as well and finds it easier to set up on targets that have been burned or otherwise crippled. Similarly, Ho-Oh has a significant chance to inflict burns through Sacred Fire, (RC) and walls support Arceus-Ground and Calm Mind Arceus-Steel, which are otherwise able to eliminate Mega Gengar if unstatused. Marshadow appreciates the removal of its common checks in Arceus-Poison and Arceus-Fairy. The Marshadium Z set may also find additional setup opportunities on targets that have been burned by Will-O-Wisp. Geomancy Xerneas is another example of a sweeper for which Will-O-Wisp support can possibly provide a more favorable setup condition. Mega Gengar is also capable of outright eliminating some of the common checks to Xerneas, namely Arceus-Poison and support Necrozma-DM. Spikes support from the likes of Ferrothorn and Skarmory in conjunction with potential Sludge Bomb poisoning can accumulate considerable chip damage on foes. Likewise, Stealth Rock support from Primal Groudon and Arceus formes inflicts significant damage to Yveltal that attempt to revenge kill Mega Gengar. Miscellaneous status users such as various support Arceus formes and support Primal Groudon prove useful in supporting this Mega Gengar variant as well. The latter is also capable of checking boosted Xerneas and Primal Kyogre, both of which can break through Mega Gengar. Offensive Primal Groudon variants can lure in support Arceus-Water for Mega Gengar as well.

[SET]
name: Perish Trapper
move 1: Perish Song
move 2: Substitute
move 3: Disable
move 4: Shadow Ball / Sludge Bomb
Item: Gengarite
Ability: Cursed Body
Nature: Timid
EVs: 252 SpA / 4 SpD / 252 Spe

[SET COMMENTS]
Moves
========
Perish Song synergizes with Shadow Tag to guarantee the removal of a passive foe. It can also put problematic sweepers or the last member of a team on a timer, preventing them from otherwise winning in some instances. Substitute helps stall for Perish Song turns and shields Mega Gengar from status. It can also be used to waste a predicted Z-Move. Disable prevents the foe from accessing its most recently used move and, in conjunction with Substitute, allows Mega Gengar to easily remove slower mono-attackers such as certain support Arceus formes and Choice-locked Pokemon. It may also provide a setup opportunity for a teammate by locking a trapped foe out of a threatening move. Shadow Ball allows Mega Gengar to revenge kill certain dangerous offensive threats that are difficult to stall out with Perish Song, such as Ultra Necrozma. Sludge Bomb can be used in its place to immediately eliminate Fairy-types like Xerneas and Arceus-Fairy, preventing Defog from the latter.

Set Details
========
Maximum Speed and Special Attack investment allow Mega Gengar to outspeed and nearly always OHKO Ultra Necrozma. Gengarite is required to Mega Evolve.

Usage Tips
========
This Mega Gengar variant has the ability to easily overcome Arceus-Dark and defensive Yveltal, which are normally able to check it. When using this set, luring them byin and setting a Substitute against a target typically forced out by Mega Gengar can prove effective. Note that Yveltal often carries Choice Scarf or Life Orb, which should be scouted for prior to attempting to trap it. Against slower Choice item users, use Disable immediately. Against foes that have only one way to significantly damage Mega Gengar, set a Substitute prior to the use of Disable to force the use of the appropriate move. Afterwards, it is generally safe to use Perish Song unless you suspect the foe is a Z-Move user. Note that early-game, Mega Gengar will typically want to switch out on the turn prior to the Perish Song counter expiring in order to avoid fainting. This must be done with some care, as the trapped target can cripple the switch-in with a status affliction or by other means and then freely go to a check upon fainting, leading to a massive loss in momentum. When choosing to switch Mega Gengar out on the turn the Perish Song counter reaches zero, make a careful analysis to determine whether this is in fact worthwhile, or whether trading Mega Gengar with the immediate threat instead will better preserve momentum. Take care in scouting for potential coverage options on otherwise easily trappable targets, such as Earth Power on Arceus-Poison and , (AC) phazing moves on support Arceus formes and Ho-Oh, (AC) and Earthquake on Necrozma-DM. In particular, be very careful of potential Z-Move users, as Z-Moves ignore their base move being disabled. The most common targets for this set that often run a Z-Move are Arceus-Water and support Necrozma-DM&mdash;telltale signs of this are Liquidation on Arceus-Water and a lack of Leftovers recovery on Necrozma-DM. These threats can be handled by setting an extra Substitute after their base attacking move has been disabled. If Mega Gengar's set has been scouted beforehand, these threats may even predict Disable and immediately use their Z-Move, so exercise caution in these situations. Additionally, this set can remove most variants of Ferrothorn, but it will likely accumulate multiple layers of entry hazards in the process, usually necessitating Defog support from a partner. One should note that the lack of Taunt on this set means that phazers like Ho-Oh, Lugia, and Skarmory cannot be stalled out with Perish Song, though the latter two take heavy damage from Shadow Ball. It is also important to keep in mind that if Disable is used prior to Perish Song, the foe will not be disabled on the last turn of the counter and can therefore proceed to hit the switch-in hard on the turn it faints.

Team Options
========
Entry hazard setters such as Primal Groudon and Ferrothorn appreciate the removal of almost every common Defogger in the tier. One of these, Arceus-Water, is often employed as the primary check to offensive Primal Groudon sets as well. The removal of Ferrothorn enables Primal Kyogre to more easily dismantle the defensive core of balance teams. Zygarde-C appreciates the elimination of its usual checks in Arceus-Fairy and Arceus-Water. Ultra Necrozma benefits from the removal of its common checks in defensive Yveltal and Arceus-Dark. These particular threats are very easily lured in and KOed by Mega Gengar, leading to excellent synergy between Ultra Necrozma and this set. Offensive Lunala also appreciates the removal of these two threats as well, as they are often the primary checks to it on a typical team. This set easily eliminates Arceus-Poison and support Necrozma-DM, two common checks to Geomancy Xerneas. This aids greatly in facilitating a Xerneas sweep during the late-game.

[STRATEGY COMMENTS]
Other Options
=============
Mega Gengar possesses a number of esoteric coverage options that improve its matchup against specific threats. Thunder 2HKOes Yveltal, Primal Kyogre, and Celesteela and deals heavy damage to Ho-Oh, while Hidden Power Ice KOes base forme Zygarde after Stealth Rock damage. Icy Wind is a weaker alternative to Hidden Power Ice that additionally provides speed control, which can prove useful against healthy Dragon Dance variants of Mega Rayquaza and Zygarde that try to set up on Mega Gengar. However, these options are difficult to fit. One can opt for various mono-attacking sets in conjunction with Mega Gengar's plethora of utility options aside from the mentioned Perish Song set. A set utilizing Taunt / Substitute / Destiny Bond / Shadow Ball or Sludge Bomb allows for more reliable use of Destiny Bond while maintaining Mega Gengar's general utility with Substitute. Additionally, one can opt for Disable over a coverage move; this trades coverage for the ability to remove slower mono-attackers. Toxic can be used on the status-inducing set to cripple several of Mega Gengar's common checks that are immune to or do not mind Will-O-Wisp, such as Ho-Oh. Hypnosis is yet another status-inducing option, (RC) and is quite difficult to handle should it hit its targets. Its inconsistency, however, should be stressed. Reflect Type prevents Mega Gengar from being Pursuit trapped and gives it a positive matchup against Ferrothorn variants carrying Gyro Ball. Protect guarantees safe Mega Evolution against foes like Marshadow and Choice Scarf Yveltal, (RC) and can be used to help stall out Perish Song turns. However, it is usually outclassed by the other mentioned utility options and is punished more by mispredictions than Substitute. Pain Split is an option for defensive teams that wish to extend Mega Gengar's longevity. Unfortunately, this move is of questionable overall value relative to Mega Gengar's other utility options. Finally, Taunt can be used over Shadow Ball or Sludge Bomb on the Perish Trapper set to make Mega Gengar an extremely potent stallbreaker, as it can even eliminate phazers like defensive Ho-Oh with proper prediction. However, this makes the set overly passive and often useless in other matchups, (RC) and is therefore not generally recommended.

Checks and Counters
===================
As Shadow Tag allows Mega Gengar to force matchups, it in fact has no counters. Its checks are generally comprised of revenge killers and Pokemon that cannot be trapped.

**Faster Threats and Priority**: Most of the metagame's Choice Scarf users such as Mega Rayquaza and Yveltal outspeed Mega Gengar and easily eliminate it owing to its fragility. While Mega Gengar is immune to Extreme Speed, other forms of priority, most notably from Marshadow and Yveltal, easily KO it. Mega Mewtwo Y and Deoxys-A are examples of the few viable Pokemon that naturally outspeed Mega Gengar and therefore easily eliminate it, though they do not serve as suitable switch-ins on the turn Gengar Mega Evolves. Even base forme Mewtwo can force Mega Gengar out, as the latter usually cannot afford to risk a Speed tie.

**Pursuit Trappers**: Pursuit users such as Tyranitar, Marshadow, Deoxys-A, and Alolan Muk can eliminate a fleeing Mega Gengar, though Mega Gengar must lack Focus Blast in Tyranitar's case. Note that Marshadow must make a risky prediction, especially if the Mega Gengar user is aware that it carries Pursuit. Additionally, Mega Gengar is capable of eliminating slower Pursuit trappers with Destiny Bond.

**Bulky Offensive Threats**: The likes of Primal Kyogre, Zygarde-C, Ho-Oh, and specially defensive Primal Groudon all escape the 2HKO from any of Mega Gengar's commonly seen coverage moves and easily remove it with their STAB moves. They can only be overcome by the use of Destiny Bond, boosted Hex, or, in some cases, the Perish Song set. Arceus-Ground and Arceus-Dark are also able to accomplish this, (RC) but are shakier checks&mdash;Mega Gengar often runs coverage specifically to handle Arceus-Dark.

**Pokemon that are Immune to Shadow Tag**: Ghost-types are immune to Shadow Tag, and therefore Mega Gengar proves ineffective in eliminating passive Ghost-type Pokemon such as Giratina. Defensive teams also have the option of equipping passive walls with Shed Shell in order to escape from Shadow Tag; pivoting moves such as Magearna's Volt Switch accomplish the same.

[CREDITS]
- Written by: [[Zayele, 471586]]
- Quality checked by: [[pichus, 374620], [ice-master-523, 464176]]
- Grammar checked by: [[bigtalk, 466663], [lotiasite, 302985]]

Sorry for taking so long. Very good overall, biggest issue i noticed was with the comma before 'and'. commas only go before 'and' if there's it's splitting two independent clauses:
e.g. I went to the park, and I walked the dog. <-- both are independent clauses, so the comma is fine
I went to the park, and walked the dog. <-- the second clause is dependent, so the comma should be removed
Implemented! Ready for upload Alakazam.
 

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