Giratina @ Heavy-Duty Boots  
Ability: Magic Bounce  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Core Enforcer  
- Nuzzle  
- Teleport  
- Roost  

Celesteela @ Leftovers  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Anchor Shot  
- Topsy-Turvy  
- Core Enforcer  
- Milk Drink  

Ho-Oh @ Leftovers  
Ability: Volt Absorb  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Anchor Shot  
- Spectral Thief  
- Knock Off  
- Roost  

Eternatus @ Lum Berry  
Ability: Simple  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Core Enforcer  
- Sludge Bomb  
- Earth Power  

Xerneas @ Heavy-Duty Boots  
Ability: Pixilate  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Boomburst  
- Rapid Spin  
- Nuzzle  
- Recover  

Mewtwo @ Life Orb  
Ability: No Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Zap Cannon  
- Focus Blast  
- Blizzard  
- Strength Sap