Slurpuff @ Focus Sash  
Ability: Unburden  
Level: 97  
EVs: 252 SpA / 252 Spe  
Hasty Nature  
IVs: 0 HP / 0 Atk / 0 Def / 0 SpD  
- Endeavor  
- Misty Explosion  
- Sticky Web  
- Magic Coat  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Oblivion Wing  
- Sucker Punch  
- Taunt  
- Heat Wave  

Calyrex-Shadow @ Focus Sash  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Nasty Plot  
- Psyshock  
- Taunt  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Substitute  
- Thunder  
- Moonblast