Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Hidden Power [Fire]
- Diamond Storm  
- Moonblast  
- Psychic

Tapu Koko @ Electrium Z
Ability: Electric Surge  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Hidden Power [Ice]  
- Calm Mind
- Roost  

Klefki @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Thunder Wave  
- Spikes  
- Reflect  
- Light Screen  

Tapu Bulu @ Choice Scarf 
Ability: Grassy Surge  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Horn Leech  
- Wood Hammer  
- Stone Edge  
- Megahorn

Mimikyu @ Life Orb  
Ability: Disguise  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Swords Dance  
- Shadow Claw  
- Play Rough  
- Shadow Sneak  

Clefable @ Rocky Helmet
Ability: Magic Guard  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
- Stealth Rock
- Soft-Boiled  
- Moonblast  
- Knock Off