http://www.serebii.net/pokedex-dp/047.shtml
I've always loved Parasect (How can you not like a giant mushroom crab... thing?) but he's never been particularly great, especially with a not-so-great typing of Bug/Grass.
Stats: 60 HP/95 Attack/80 Defense/60 Sp Attack/80 Sp Defense/30 Speed/405 Total
Abilities:
-Effect Spore gives Parasect a 10% chance to Poison/Paralyze/Sleep enemies when they use a contact move.
-Dry Skin gives Parasect a further weakness to Fire (8x weakness XD) and makes him take damage in sun; but he can gain HP by taking Water attacks and recovers HP in rain.
Dry Skin would be preferable, since Parasect was already getting OHKOed by most Fire type moves anyway, and the water immunity plus healing is nice.
Notable Physical Movepool (STAB bolded)
Aerial Ace
Brick Break
Bug Bite
Counter
Cross Poison
Dig
Facade
Flail
Giga Impact
Return/Frustration
Slash
X-Scissor
Not horrible; not great. No physical Grass STAB for Parasect.
Notable Special Movepool (STAB bolded)
Energy Ball
Giga Drain
Grass Knot
Hidden Power
Hyper Beam
Psybeam
Sludge Bomb
Solarbeam
Not that great, really. No special Bug STAB either.
Notable Support Movepool
Aromatherapy
Captivate
Double Team
Endure
Light Screen
Protect
Rest
Screech
Sleep Talk
Spore
Stun Spore
Substitute
Sunny Day
Swagger
Swords Dance
Toxic
This is where Parasect shines. He's got lots of supporting options.
Team Supporter
Parasect @ Leftovers
Dry Skin
Impish/Careful Nature (+Def/SDef, -SAtk)
252 Def/252 SDef/4 HP
Spore
Light Screen
X-Scissor
Aromatherapy/Stun Spore/Toxic/Filler
Fairly straightforward; Spore and Light Screen are Parasect's main ways to support the team. X-Scissor gives you something to attack with.
The last move is a bit of a tossup. If you want Parasect to act as an Aromatherapist, he can do that. If you want a second status, that's also an option. If neither appeal to you... then just pick something else.
Sweeper
Parasect @ Leftovers/Life Orb
Dry Skin
Adamant (+Atk, -SAtk)
252 Atk/128 Def/128 SDef
Swords Dance
X-Scissor
Cross Poison/Return/Brick Break
Cross Poison/Return/Brick Break
Parasect doesn't survive very well, so this is more of a novelty really.
Swords Dance boosts your offense. X-Scissor for STAB. The last two moves depend on what kind of type coverage you want.
Annoyer
Parasect @ Leftovers/Brightpowder
Dry Skin
Impish/Careful Nature (+Def/SDef, -SAtk)
252 Def/252 SDef/4 HP
Spore/Toxic/Stun Spore
Double Team
Light Screen
X-Scissor
Once you set up, it's incredibly annoying to try to kill you. Granted, Parasect is likely to die before setting up, making this a bit of a novelty as well.
You have your choice of status. Double Team (and Brightpowder if you use it) make Parasect difficult to hit, and Light Screen makes him more survivable. X-Scissor so you can actually kill stuff, although if you want to just Toxic stuff to death, you can always use Swagger instead.
Focus Sash
Parasect @ Focus Sash
Dry Skin
Adamant Nature (+Atk, -SAtk)
252 Atk/252 Spd/6 HP
Spore
Pursuit
X-Scissor
Cross Poison/Swords Dance/Toxic/Aromatherapy/Dig/Flail/Rest/Counter
The idea is that Parasect starts with Spore, and if it's hit first, Focus Sash saves it. The foe is now asleep - expect them to switch out. Time for Pursuit. This applies unless X-scissor would be more effective as the starting move (say, against Grass/Psychic, or Dark type moves are useless against the pokemon).
There are a number of options for the fourth move. Cross Poison has a high chance of a critical hit and may poison the pokemon. Swords Dance is useful if you get a chance to use it, to power up its moves. Toxic is an obvious option, while Aromatherapy is a good way to use Parasect as a later-game pokemon. Dig is for countering fire types, mostly. Flail makes use of the 1HP left over after Focus Sash, and Rest can heal Parasect completely after having been hit for nearly OHKO. Counter is useful for certain pokemon, most notably Tyranitar. I'd go with Aromatherapy, Flail, or Cross Poison, but all of those moves are potentially decent. I suppose Bug Bite could be an option, too, in case the opponent has a Salac, Liechi, or Sitrus Berry, but I wouldn't suggest it.
Dry skin is essentially required, otherwise there is a chance that the foe will be given Poison or Paralysis before you get to Spore it.
In the case of being faced with a Tyranitar without Counter, best idea is to use X-Scissor to get in some damage before dying, or Spore it and try to predict what they'll bring out in place of it (since you're going to have to choose a pokemon to replace Parasect).
Anyways, with mediocre stats and a bad typing, Parasect isn't that great of a pokemon, but he's always fun, and makes a decent supporter.
This is the first time I've ever done a discussion thread, so hopefully I didn't screw up horribly.
I've always loved Parasect (How can you not like a giant mushroom crab... thing?) but he's never been particularly great, especially with a not-so-great typing of Bug/Grass.
Stats: 60 HP/95 Attack/80 Defense/60 Sp Attack/80 Sp Defense/30 Speed/405 Total
Abilities:
-Effect Spore gives Parasect a 10% chance to Poison/Paralyze/Sleep enemies when they use a contact move.
-Dry Skin gives Parasect a further weakness to Fire (8x weakness XD) and makes him take damage in sun; but he can gain HP by taking Water attacks and recovers HP in rain.
Dry Skin would be preferable, since Parasect was already getting OHKOed by most Fire type moves anyway, and the water immunity plus healing is nice.
Notable Physical Movepool (STAB bolded)
Aerial Ace
Brick Break
Bug Bite
Counter
Cross Poison
Dig
Facade
Flail
Giga Impact
Return/Frustration
Slash
X-Scissor
Not horrible; not great. No physical Grass STAB for Parasect.
Notable Special Movepool (STAB bolded)
Energy Ball
Giga Drain
Grass Knot
Hidden Power
Hyper Beam
Psybeam
Sludge Bomb
Solarbeam
Not that great, really. No special Bug STAB either.
Notable Support Movepool
Aromatherapy
Captivate
Double Team
Endure
Light Screen
Protect
Rest
Screech
Sleep Talk
Spore
Stun Spore
Substitute
Sunny Day
Swagger
Swords Dance
Toxic
This is where Parasect shines. He's got lots of supporting options.
Team Supporter
Parasect @ Leftovers
Dry Skin
Impish/Careful Nature (+Def/SDef, -SAtk)
252 Def/252 SDef/4 HP
Spore
Light Screen
X-Scissor
Aromatherapy/Stun Spore/Toxic/Filler
Fairly straightforward; Spore and Light Screen are Parasect's main ways to support the team. X-Scissor gives you something to attack with.
The last move is a bit of a tossup. If you want Parasect to act as an Aromatherapist, he can do that. If you want a second status, that's also an option. If neither appeal to you... then just pick something else.
Sweeper
Parasect @ Leftovers/Life Orb
Dry Skin
Adamant (+Atk, -SAtk)
252 Atk/128 Def/128 SDef
Swords Dance
X-Scissor
Cross Poison/Return/Brick Break
Cross Poison/Return/Brick Break
Parasect doesn't survive very well, so this is more of a novelty really.
Swords Dance boosts your offense. X-Scissor for STAB. The last two moves depend on what kind of type coverage you want.
Annoyer
Parasect @ Leftovers/Brightpowder
Dry Skin
Impish/Careful Nature (+Def/SDef, -SAtk)
252 Def/252 SDef/4 HP
Spore/Toxic/Stun Spore
Double Team
Light Screen
X-Scissor
Once you set up, it's incredibly annoying to try to kill you. Granted, Parasect is likely to die before setting up, making this a bit of a novelty as well.
You have your choice of status. Double Team (and Brightpowder if you use it) make Parasect difficult to hit, and Light Screen makes him more survivable. X-Scissor so you can actually kill stuff, although if you want to just Toxic stuff to death, you can always use Swagger instead.
Focus Sash
Parasect @ Focus Sash
Dry Skin
Adamant Nature (+Atk, -SAtk)
252 Atk/252 Spd/6 HP
Spore
Pursuit
X-Scissor
Cross Poison/Swords Dance/Toxic/Aromatherapy/Dig/Flail/Rest/Counter
The idea is that Parasect starts with Spore, and if it's hit first, Focus Sash saves it. The foe is now asleep - expect them to switch out. Time for Pursuit. This applies unless X-scissor would be more effective as the starting move (say, against Grass/Psychic, or Dark type moves are useless against the pokemon).
There are a number of options for the fourth move. Cross Poison has a high chance of a critical hit and may poison the pokemon. Swords Dance is useful if you get a chance to use it, to power up its moves. Toxic is an obvious option, while Aromatherapy is a good way to use Parasect as a later-game pokemon. Dig is for countering fire types, mostly. Flail makes use of the 1HP left over after Focus Sash, and Rest can heal Parasect completely after having been hit for nearly OHKO. Counter is useful for certain pokemon, most notably Tyranitar. I'd go with Aromatherapy, Flail, or Cross Poison, but all of those moves are potentially decent. I suppose Bug Bite could be an option, too, in case the opponent has a Salac, Liechi, or Sitrus Berry, but I wouldn't suggest it.
Dry skin is essentially required, otherwise there is a chance that the foe will be given Poison or Paralysis before you get to Spore it.
In the case of being faced with a Tyranitar without Counter, best idea is to use X-Scissor to get in some damage before dying, or Spore it and try to predict what they'll bring out in place of it (since you're going to have to choose a pokemon to replace Parasect).
Anyways, with mediocre stats and a bad typing, Parasect isn't that great of a pokemon, but he's always fun, and makes a decent supporter.
This is the first time I've ever done a discussion thread, so hopefully I didn't screw up horribly.