Mewtwo @ Mewtwonite Y  
Ability: Pressure  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Focus Blast  
- Ice Beam  
- Taunt  

Arceus @ Life Orb  
Ability: Multitype  
EVs: 132 HP / 252 Atk / 124 Spe  
Adamant Nature  
- Swords Dance  
- Extreme Speed  
- Shadow Claw  
- Recover  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 184 HP / 28 Def / 252 SpA / 44 Spe  
Modest Nature  
- Geomancy  
- Moonblast  
- Thunder  
- Focus Blast  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 56 Atk / 252 SpA / 144 SpD / 56 Spe  
Mild Nature  
- Rock Polish  
- Fire Blast  
- Dragon Pulse  
- Precipice Blades  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 132 HP / 28 Atk / 252 SpA / 96 Spe  
Rash Nature  
- Dark Pulse  
- Oblivion Wing  
- Sucker Punch  
- Heat Wave  

Excadrill @ Focus Sash  
Ability: Mold Breaker  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Rapid Spin  
- Earthquake  
- Rock Slide