Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Diamond Storm  
- Moonblast  
- Earth Power  
- Protect  

Volcarona @ Psychium Z  
Ability: Flame Body  
EVs: 32 HP / 252 SpA / 224 Spe  
Timid Nature  
IVs: 0 Atk  
- Quiver Dance  
- Flamethrower  
- Bug Buzz  
- Psychic  

Chansey (F) @ Eviolite  
Ability: Natural Cure  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Soft-Boiled  
- Thunder Wave  
- Stealth Rock  

Jumbao @ Choice Scarf  
Ability: Trace  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Leaf Storm  
- Flame Burst  
- Healing Wish  

Colossoil @ Assault Vest  
Ability: Guts  
EVs: 252 Atk / 140 SpD / 116 Spe  
Adamant Nature  
- Earthquake  
- Sucker Punch  
- Pursuit  
- Rapid Spin  

Arghonaut @ Leftovers  
Ability: Unaware  
EVs: 248 HP / 164 Def / 96 SpD  
Careful Nature  
- Spikes  
- Knock Off  
- Circle Throw  
- Recover