Tapu Bulu @ Grassium Z  
Ability: Grassy Surge  
EVs: 252 HP / 56 Atk / 116 SpD / 84 Spe  
Adamant Nature  
- Wood Hammer  
- Superpower  
- Swords Dance  
- Protect  

Volcanion @ Wiki Berry  
Ability: Water Absorb  
EVs: 248 HP / 252 SpA / 8 SpD  
Modest Nature  
IVs: 0 Atk  
- Heat Wave  
- Steam Eruption  
- Substitute  
- Protect  

Metagross-Mega @ Metagrossite  
Ability: Tough Claws  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Iron Head  
- Ice Punch  
- Stomping Tantrum  
- Protect  

Mew @ Wiki Berry  
Ability: Synchronize  
EVs: 252 HP / 68 Def / 40 SpA / 12 SpD / 136 Spe  
Timid Nature  
- Fake Out  
- Ice Beam  
- Stealth Rock  
- Tailwind  

Zeraora @ Assault Vest  
Ability: Volt Absorb  
EVs: 128 HP / 116 Atk / 72 SpD / 192 Spe  
Jolly Nature  
- Fake Out  
- Plasma Fists  
- Snarl  
- Volt Switch  

Diancie @ Weakness Policy  
Ability: Clear Body  
EVs: 252 HP / 108 Atk / 52 Def / 96 SpA  
Brave Nature  
IVs: 0 Spe  
- Diamond Storm  
- Moonblast  
- Trick Room  
- Protect