Arceus @ Normalium Z  
Ability: Merciless  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Boomburst  
- Secret Sword  
- Seed Flare  
- Shell Smash  

Golurk @ Life Orb  
Ability: Sap Sipper  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Thousand Waves  
- Extreme Speed  
- Sunsteel Strike  
- Shift Gear  

Chansey @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Final Gambit  
- Wish  
- Protect  
- Heal Bell  

Yveltal @ Leftovers  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Whirlwind  
- Knock Off  
- Roost  
- Stealth Rock  

Registeel @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Haze  
- Defog  
- Milk Drink  
- Spore  

Mewtwo-Mega-Y @ Choice Specs  
Ability: Psychic Surge  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Psycho Boost  
- Earth Power  
- Spore