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

Volcarona @ Wiki Berry  
Ability: Flame Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Quiver Dance  
- Fire Blast  
- Bug Buzz  
- Hidden Power [Ground]  

Serperior @ Leftovers  
Ability: Contrary  
EVs: 56 HP / 200 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Hidden Power [Fire]  
- Defog  
- Taunt  

Magearna @ Iapapa Berry  
Ability: Soul-Heart  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shift Gear  
- Thunderbolt  
- Ice Beam  
- Focus Blast  

Dragonite @ Flyinium Z  
Ability: Multiscale  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Fly  
- Earthquake  
- Extreme Speed  

Kommo-o @ Salac Berry  
Ability: Bulletproof  
EVs: 52 HP / 204 Atk / 252 Spe  
Jolly Nature  
- Belly Drum  
- Substitute  
- Drain Punch  
- Thunder Punch