Mewtwo @ Life Orb  
Ability: Sheer Force  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psychic  
- Shadow Ball  
- Focus Blast  
- Hail  

Jirachi @ Leftovers  
Ability: Teravolt  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Will-O-Wisp  
- Spikes  
- Recover  
- Encore  

Darkrai @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Dark Void  
- Rapid Spin  
- Dark Pulse  
- Quiver Dance  

Chansey (F) @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Whirlwind  
- Toxic Spikes  
- Soft-Boiled  
- Knock Off  

Jellicent @ Rocky Helmet  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- U-turn  
- Scald  
- Worry Seed  
- Slack Off  

Groudon @ Lum Berry  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Impish Nature  
IVs: 0 Atk  
- Nature Power  
- Will-O-Wisp  
- Recover  
- Heart Swap