Psychic Team

Slowbro @ Leftovers
Ability: Regenerator
EVs: 252 HP / 232 Def / 24 SpD
Bold Nature
- Scald
- Flamethrower
- Ice Beam
- Slack Off

Gardevoir @ Gardevoirite
Ability: Trace
EVs: 24 Def / 232 SpA / 252 Spe
Timid Nature
- Hyper Voice
- Psychic
- Thunderbolt
- Energy Ball

Jirachi @ Choice Band
Ability: Serene Grace
EVs: 128 HP / 252 Atk / 4 SpD / 124 Spe
Jolly Nature
- Iron Head
- U-turn
- Drain Punch
- Ice Punch

Cresselia @ Leftovers
Ability: Levitate
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
- Moonlight
- Psychic
- Moonblast
- Toxic

Victini @ Choice Band
Ability: Victory Star
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- V-create
- Bolt Strike
- Brick Break
- U-turn

Mew @ Leftovers
Ability: Synchronize
EVs: 252 Atk / 4 Def / 252 Spe
Impish Nature
- Defog
- Soft-Boiled
- Will-O-Wisp
- Knock Off