Gengar-Mega @ Choice Specs  
Ability: Adaptability  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Moongeist Beam  
- Sludge Wave  
- Volt Switch  

Zygarde-Complete @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- U-turn  
- Core Enforcer  
- Spectral Thief  
- Knock Off  

Chansey @ Lucky Punch  
Ability: Imposter  
Happiness: 55  
EVs: 252 HP / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Metal Burst  
- Whirlwind  
- Soft-Boiled  
- Teleport  

Xerneas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Quiver Dance  
- Strength Sap  
- Spikes  

Arceus-Water @ Groundium Z  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Fishious Rend  
- Thousand Waves  
- Defog  
- Recover  

Solgaleo @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Anchor Shot  
- Shore Up  
- Haze  
- Glare