Kyogre-Primal @ Toxic Orb  
Ability: Poison Heal  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
- Scald  
- Knock Off  
- Quiver Dance  
- Stealth Rock  

Diancie-Mega @ Choice Specs  
Ability: Pixilate  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Boomburst  
- Extreme Speed  
- Revelation Dance  
- Magma Storm  

Ho-Oh @ Ghostium Z  
Ability: Magic Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Anchor Shot  
- Spectral Thief  
- Defog  
- Soft-Boiled  

Giratina @ Leftovers  
Ability: Prankster  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 248 Spe  
Bold Nature  
IVs: 0 Atk  
- Shore Up  
- Core Enforcer  
- Strength Sap  
- Encore  

Arceus @ Groundium Z  
Ability: Soundproof  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hardy Nature  
- Boomburst  
- Thousand Waves  
- Parting Shot  
- Recover  

Chansey @ Eviolite  
Ability: Imposter  
Happiness: 55  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Shore Up  
- Roar  
- Haze  
- Knock Off