Mewtwo-Mega-Y @ Life Orb  
Ability: Magic Guard  
Tera Type: Psychic  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Precipice Blades  
- Lumina Crash  
- Light of Ruin  
- Chloroblast  

Arceus-Dark @ Leftovers  
Ability: Ice Scales  
Tera Type: Fairy  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Heal Order  
- Ceaseless Edge  
- Nuzzle  
- Spectral Thief  

Groudon @ Red Orb  
Ability: Dauntless Shield  
Tera Type: Fire  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- V-create  
- Stealth Rock  
- Strength Sap  
- Knock Off  

Dondozo @ Leftovers  
Ability: Magic Bounce  
Tera Type: Dragon  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Spectral Thief  
- Heal Order  
- Anchor Shot  
- Entrainment  

Zacian-Crowned @ Covert Cloak  
Ability: Pixilate  
Happiness: 0  
Tera Type: Fairy  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Rapid Spin  
- Anchor Shot  
- Frustration  
- Strength Sap  

Chansey @ Shed Shell  
Ability: Imposter  
Happiness: 55  
Tera Type: Ghost  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Heal Order  
- Whirlwind  
- Teleport  
- Spikes