Amoonguss @ Eject Button  
Ability: Regenerator  
EVs: 232 HP / 88 Def / 188 SpD  
Calm Nature  
IVs: 0 Atk  
- Spore  
- Rage Powder  
- Pollen Puff  
- Sludge Bomb  

Diancie @ Weakness Policy  
Ability: Clear Body  
EVs: 252 HP / 140 Atk / 116 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Diamond Storm  
- Body Press  
- Trick Room  
- Protect  

Porygon2 @ Eviolite  
Ability: Download  
EVs: 252 HP / 16 Def / 132 SpA / 108 SpD  
Quiet Nature  
IVs: 0 Spe  
- Ice Beam  
- Thunderbolt  
- Recover  
- Trick Room  

Necrozma @ Safety Goggles  
Ability: Prism Armor  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Expanding Force  
- Earth Power  
- Trick Room  
- Protect  

Indeedee-F (F) @ Eject Button  
Ability: Psychic Surge  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Follow Me  
- Helping Hand  
- Expanding Force  
- Trick  

Volcanion @ Shuca Berry  
Ability: Water Absorb  
EVs: 248 HP / 252 SpA / 8 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Steam Eruption  
- Heat Wave  
- Sludge Bomb  
- Protect