Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 12 Atk / 244 SpA / 252 Spe  
Naive Nature  
- Moonblast  
- Diamond Storm  
- Earth Power  
- Protect  

Volcarona @ Lum Berry  
Ability: Flame Body  
Shiny: Yes  
EVs: 24 HP / 188 Def / 152 SpA / 144 Spe  
Modest Nature  
IVs: 0 Atk  
- Flamethrower  
- Bug Buzz  
- Giga Drain  
- Quiver Dance  

Keldeo-Resolute @ Choice Specs  
Ability: Justified  
EVs: 24 HP / 232 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hydro Pump  
- Scald  
- Secret Sword  
- Focus Blast  

Rotom-Mow @ Choice Scarf  
Ability: Levitate  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Thunderbolt  
- Volt Switch  
- Trick  

Tornadus-Therian (M) @ Assault Vest  
Ability: Regenerator  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
- Hurricane  
- Heat Wave  
- Knock Off  
- U-turn  

Excadrill @ Leftovers  
Ability: Mold Breaker  
EVs: 56 HP / 36 Atk / 80 Def / 84 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Iron Head  
- Rapid Spin  
- Stealth Rock