Mewtwo @ Light Clay  
Ability: Snow Warning  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Aurora Veil  
- Taunt  
- Volt Switch  
- Strength Sap  

Calyrex-Ice @ Leftovers  
Ability: Simple  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 152 Spe  
Brave Nature  
- Shift Gear  
- Glacial Lance  
- Photon Geyser  
- Pyro Ball  

Eternatus @ Black Sludge  
Ability: Simple  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Core Enforcer  
- Sludge Bomb  
- Final Gambit  

Ho-Oh @ Heavy-Duty Boots  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
IVs: 0 Atk  
- Parting Shot  
- Topsy-Turvy  
- Glare  
- Shore Up  

Xerneas @ Life Orb  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 SpA / 252 SpD / 252 Spe  
Mild Nature  
IVs: 0 Def  
- Quiver Dance  
- Boomburst  
- Blue Flare  
- Explosion  

Spectrier @ Choice Specs  
Ability: Adaptability  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Astral Barrage  
- Moongeist Beam  
- Focus Blast  
- Volt Switch