Diancie @ Weakness Policy  
Ability: Clear Body  
EVs: 252 HP / 252 Atk / 4 SpD  
Sassy Nature  
IVs: 0 Spe  
- Diamond Storm  
- Moonblast  
- Trick Room  
- Protect  

Volcanion @ Life Orb  
Ability: Water Absorb  
EVs: 252 HP / 4 Def / 252 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Steam Eruption  
- Heat Wave  
- Sludge Bomb  
- Protect  

Rillaboom @ Assault Vest  
Ability: Grassy Surge  
EVs: 224 HP / 252 Atk / 32 Spe  
Adamant Nature  
IVs: 0 SpA  
- Fake Out  
- Grassy Glide  
- U-turn  
- Knock Off  

Pheromosa @ Life Orb  
Ability: Beast Boost  
EVs: 244 Atk / 12 SpA / 252 Spe  
Naive Nature  
- Close Combat  
- U-turn  
- Ice Beam  
- Protect  

Mew @ Sitrus Berry  
Ability: Synchronize  
EVs: 112 HP / 164 SpA / 232 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Psychic  
- Ice Beam  
- Trick Room  

Blastoise @ Safety Goggles  
Ability: Rain Dish  
EVs: 252 HP / 60 Def / 196 SpD  
Careful Nature  
IVs: 0 SpA  
- Fake Out  
- Aqua Jet  
- Follow Me  
- Helping Hand