Xerneas @ Toxic Orb  
Ability: Poison Heal  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Lava Plume  
- Quiver Dance  
- Thunder Cage  
- Moonblast  

Lunala @ Rocky Helmet  
Ability: Fur Coat  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Hex  
- Core Enforcer  
- Recover  
- Glare  

Groudon @ Toxic Orb  
Ability: Poison Heal  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Psycho Shift  
- Dragon Dance  
- Thousand Arrows  
- Strength Sap  

Zamazenta-Crowned @ Expert Belt  
Ability: Tough Claws  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Sunsteel Strike  
- Thunderous Kick  
- Spectral Thief  
- V-create  

Celesteela @ Assault Vest  
Ability: Regenerator  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Nuzzle  
- Anchor Shot  
- Knock Off  
- U-turn  

Chansey (F) @ Eviolite  
Ability: Imposter  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Wish  
- Anchor Shot  
- King's Shield  
- Teleport