Aldaron
geriatric
There surprisingly is no Paralysis set mentioned for Jirachi. However, since the main set lists the typical Wish, U-turn, Zen Headbutt set, it might be a little redundant to post a set using those options. I believe that is the standard Jirachi, but I don't use it too often and I don't really feel its necessary to include it.
However, I do use another neat little Jirachi, one that takes advantage of Thunderbolt and Ice Punch to deal with issues like Gyarados and Garchomp, while also supporting the team with Paralysis and U-turn passing / scouting.
http://www.smogon.com/dp/pokemon/jirachi
[SET]
name: Body Slammin' Counter
move 1: Body Slam
move 2: U-turn
move 3: Thunderbolt
move 4: Ice Punch
item: Leftovers
nature: Quiet
evs: 88 HP / 164 Atk / 160 Def / 96 SpA
[SET COMMENTS]
<p>This set takes advantage of various characteristics to both support the team, via spreading Paralysis and scouting with U-turn, and counter specific threats. Serene Grace makes Body Slam's Paralysis rate 60%, meaning even if the opposition switches in a troublesome Pokemon, there is a 60% chance that Jirachi will Paralyze it and U-turn to a respective counter. This better than average chance of crippling the opposition's method of dealing with Jirachi is extraordinarily advantageous, especially considering common Jirachi switch ins are Heatran, Garchomp and Tyranitar, none of which appreciate being paralyzed.</p>
<p>The EVs are very specific. 277 Attack allows Jirachi to beat Garchomp 1 on 1, assuming Garchomp isn't boosted. Body Slam will (preferably on the switch so Jirachi doesn't take any damage) paralyze Garchomp, and Jirachi will then use Ice Punch to faint Garchomp on average. Additionally, the 363 HP and 276 Defense take into account Yache versions of Garchomp, as an Adamant Yache Berry Garchomp's Earthquake will now never OHKO Jirachi. 277 Attack and 286 Special Attack allow Jirachi to OHKO 384 HP / 239 Def / 236 SpD Gyarados on average with Body Slam + Thunderbolt. Note that both these on average calculations become 100% kills simply if Stealth Rock is in play.</p>
<p>Essentially, Jirachi will always Body Slam on turn 1, preferably paralyzing the opposition's counter. Turn 2 generally involves using U-turn to switch to a proper method of dealing with the now paralyzed counter. After this is when Jirachi's potential becomes especially interesting. Once the opponent's counter is paralyzed (and preferably dealt with), there is a high probably he will take high risk / high reward chances, like switching in Garchomp, Gyarados, Lucario or Salamence. This is when Jirachi will truly shine, as even if it fails to paralyze on turn 1, it has the defenses to survive most attacks and Body Slam again. Body Slam has an 84% chance of Paralyzing once in two turns, so Jirachi will almost always have the advantage against those offensive Pokemon.</p>
However, I do use another neat little Jirachi, one that takes advantage of Thunderbolt and Ice Punch to deal with issues like Gyarados and Garchomp, while also supporting the team with Paralysis and U-turn passing / scouting.
http://www.smogon.com/dp/pokemon/jirachi
[SET]
name: Body Slammin' Counter
move 1: Body Slam
move 2: U-turn
move 3: Thunderbolt
move 4: Ice Punch
item: Leftovers
nature: Quiet
evs: 88 HP / 164 Atk / 160 Def / 96 SpA
[SET COMMENTS]
<p>This set takes advantage of various characteristics to both support the team, via spreading Paralysis and scouting with U-turn, and counter specific threats. Serene Grace makes Body Slam's Paralysis rate 60%, meaning even if the opposition switches in a troublesome Pokemon, there is a 60% chance that Jirachi will Paralyze it and U-turn to a respective counter. This better than average chance of crippling the opposition's method of dealing with Jirachi is extraordinarily advantageous, especially considering common Jirachi switch ins are Heatran, Garchomp and Tyranitar, none of which appreciate being paralyzed.</p>
<p>The EVs are very specific. 277 Attack allows Jirachi to beat Garchomp 1 on 1, assuming Garchomp isn't boosted. Body Slam will (preferably on the switch so Jirachi doesn't take any damage) paralyze Garchomp, and Jirachi will then use Ice Punch to faint Garchomp on average. Additionally, the 363 HP and 276 Defense take into account Yache versions of Garchomp, as an Adamant Yache Berry Garchomp's Earthquake will now never OHKO Jirachi. 277 Attack and 286 Special Attack allow Jirachi to OHKO 384 HP / 239 Def / 236 SpD Gyarados on average with Body Slam + Thunderbolt. Note that both these on average calculations become 100% kills simply if Stealth Rock is in play.</p>
<p>Essentially, Jirachi will always Body Slam on turn 1, preferably paralyzing the opposition's counter. Turn 2 generally involves using U-turn to switch to a proper method of dealing with the now paralyzed counter. After this is when Jirachi's potential becomes especially interesting. Once the opponent's counter is paralyzed (and preferably dealt with), there is a high probably he will take high risk / high reward chances, like switching in Garchomp, Gyarados, Lucario or Salamence. This is when Jirachi will truly shine, as even if it fails to paralyze on turn 1, it has the defenses to survive most attacks and Body Slam again. Body Slam has an 84% chance of Paralyzing once in two turns, so Jirachi will almost always have the advantage against those offensive Pokemon.</p>