Volcarona @ Lum Berry  
Ability: Flame Body  
EVs: 112 HP / 56 Def / 196 SpA / 144 Spe  
Modest Nature  
IVs: 1 Atk / 30 Def / 30 SpD / 30 Spe  
- Quiver Dance  
- Flamethrower  
- Bug Buzz  
- Hidden Power [Rock]  

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

Cloyster @ Focus Sash  
Ability: Skill Link  
EVs: 32 HP / 252 Atk / 224 Spe  
Naughty Nature  
- Shell Smash  
- Icicle Spear  
- Rock Blast  
- Hydro Pump  

Landorus-Therian (M) @ Focus Sash  
Ability: Intimidate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Imprison  
- Earthquake  
- Explosion  

Serperior @ Light Clay  
Ability: Contrary  
EVs: 112 HP / 144 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Taunt  
- Leaf Storm  
- Light Screen  
- Reflect  

Manaphy @ Rindo Berry  
Ability: Hydration  
EVs: 168 HP / 216 SpA / 124 Spe  
Modest Nature  
IVs: 0 Atk  
- Tail Glow  
- Surf  
- Ice Beam  
- Energy Ball