Charizard-Mega-Y @ Life Orb  
Ability: Triage  
Tera Type: Fire  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Magma Storm  
- Oblivion Wing  
- Electro Drift  
- Tail Glow  

Mewtwo-Mega-Y @ Life Orb  
Ability: Magic Guard  
Tera Type: Psychic  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Lumina Crash  
- Ice Beam  
- Electro Drift  
- High Jump Kick  

Arceus-Ground @ Ability Shield  
Ability: Ice Scales  
Tera Type: Dark  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Thousand Waves  
- Court Change  
- Topsy-Turvy  
- Heal Order  

Xerneas @ Toxic Orb  
Ability: Poison Heal  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
- Moonblast  
- Rapid Spin  
- Will-O-Wisp  
- Spiky Shield  

WORST MON ON TEAM (Dondozo) @ Covert Cloak  
Ability: Fur Coat  
Tera Type: Water  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Core Enforcer  
- Spectral Thief  
- Heal Order  
- U-turn  

Chansey @ Eviolite  
Ability: Imposter  
Happiness: 0  
Tera Type: Ghost  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Mirror Coat  
- Whirlwind  
- Heal Order  
- Topsy-Turvy