Shaymin-Sky @ Life Orb  
Ability: Serene Grace  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Protect  
- Seed Flare  
- Air Slash  
- Earth Power  

Volcarona @ Life Orb  
Ability: Flame Body  
EVs: 16 HP / 204 Def / 36 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Protect  
- Bug Buzz  
- Heat Wave  
- Rage Powder  

Hoopa-Unbound @ Choice Scarf  
Ability: Magician  
EVs: 108 Atk / 148 SpA / 252 Spe  
Naive Nature  
- Hyperspace Fury  
- Hyperspace Hole  
- Gunk Shot  
- Trick  

Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 128 Atk / 128 SpA / 252 Spe  
Hasty Nature  
- Protect  
- Diamond Storm  
- Moonblast  
- Hidden Power [Ice]