Stardust Breaker (Xerneas) @ Heavy-Duty Boots  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Boomburst  
- Fishious Rend  
- Strength Sap  
- Rapid Spin  

Cascading Failure (Regigigas) @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 69 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- Facade  
- Glacial Lance  
- Spikes  
- Shift Gear  

Swallow's Rain (Kyogre) @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Nuzzle  
- Scald  
- Spectral Thief / Core Enforcer  
- U-turn  

Acquired Skills (Zamazenta-Crowned) @ Rocky Helmet  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 69 SpA / 252 SpD / 252 Spe  
Impish Nature  
- Knock Off  
- Spectral Thief / Thunderous Kick  
- Recover
- Teleport  

Prophylactic Panic (Giratina) @ Griseous Orb  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Haze  
- Roost  
- Entrainment  
- Parting Shot  

Cambio Forma (Chansey) (F) @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 69 SpA / 252 SpD / 252 Spe  
Careful Nature  
- Aromatherapy  
- Knock Off  
- Shore Up  
- Parting Shot