Diancie @ Sitrus Berry  
Ability: Dauntless Shield  
EVs: 252 HP / 128 Atk / 12 Def / 116 SpD  
Brave Nature  
IVs: 0 Spe  
- Diamond Storm  
- Body Press  
- Trick Room  
- Protect  

Necrozma @ Sitrus Berry  
Ability: Psychic Surge  
EVs: 252 HP / 192 SpA / 64 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Expanding Force  
- Earth Power  
- Trick Room  
- Protect  

Amoonguss @ Sitrus Berry  
Ability: Thick Fat  
EVs: 236 HP / 180 Def / 92 SpD  
Sassy Nature  
IVs: 0 Atk  
- Pollen Puff  
- Spore  
- Rage Powder  
- Protect  

Cresselia (F) @ Sitrus Berry  
Ability: Magic Bounce  
EVs: 252 HP / 116 Def / 4 SpA / 136 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Helping Hand  
- Ice Beam  
- Moonlight  
- Trick Room  

Glastrier @ Heavy-Duty Boots  
Ability: Refrigerate  
EVs: 248 HP / 252 Atk / 8 SpD  
Adamant Nature  
- Double-Edge  
- High Horsepower  
- Close Combat  
- Protect  

Volcanion @ Heavy-Duty Boots  
Ability: Storm Drain  
EVs: 252 HP / 156 SpA / 100 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Heat Wave  
- Steam Eruption  
- Sludge Bomb  
- Protect