Regigigas @ Toxic Orb  
Ability: Poison Heal  
Tera Type: Normal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Facade  
- Ceaseless Edge  
- Dragon Tail  
- U-turn  

Xerneas @ Pixie Plate / Covert Cloak / Heavy-Duty Boots 
Ability: Pixilate  
Tera Type: Fairy  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Boomburst  
- Rapid Spin  
- Earth Power / Headlong Rush  
- Strength Sap  

Arceus-Ghost @ Spooky Plate  
Ability: Mold Breaker  
Tera Type: Ghost  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Secret Sword  
- Tail Glow  
- Strength Sap  

Groudon @ Rocky Helmet  
Ability: Fur Coat  
Tera Type: Ground  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish / Relaxed Nature  
- Thousand Waves  
- Spectral Thief  
- Stone Axe / Volt Switch 
- Heal Order  

Swampert-Mega @ Covert Cloak  
Ability: Ice Scales  
Tera Type: Water  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Thousand Waves  
- Spectral Thief  
- Entrainment  
- Heal Order  

Chansey (F) @ Eviolite  
Ability: Imposter  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
- Final Gambit  
- Whirlwind  
- Heal Order  
- Glare / Nuzzle