Barraskewda @ Choice Band  
Ability: Primordial Sea  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Fishious Rend  
- Glacial Lance  
- Diamond Storm  
- Flip Turn  

Registeel @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 9 Atk / 0 Spe  
- Spectral Thief  
- Knock Off  
- Nuzzle  
- U-turn  

Giratina @ Rocky Helmet  
Ability: Fur Coat  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Teleport  
- Core Enforcer  
- Stealth Rock  
- Soft-Boiled  

Zamazenta-Crowned @ Leftovers  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Anchor Shot  
- Topsy-Turvy  
- Knock Off  
- Roost  

Xerneas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
- Quiver Dance  
- Moonblast  
- Rapid Spin  
- Strength Sap  

Regigigas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Spikes  
- Facade  
- Knock Off  
- Flip Turn