Reshiram @ Life Orb  
Ability: Magic Guard  
Tera Type: Dragon  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Mind Blown  
- Core Enforcer  
- Strength Sap  
- Quiver Dance  

Zygarde-Complete @ Covert Cloak  
Ability: Magic Bounce  
Tera Type: Dragon  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Core Enforcer  
- Mortal Spin  
- Heal Order  
- U-turn  

Chansey (F) @ Eviolite  
Ability: Imposter  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
- Thousand Waves  
- Spectral Thief  
- Heal Order  
- Heal Bell  

Groudon @ Red Orb  
Ability: Intrepid Sword  
Tera Type: Ground  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- V-create  
- Spectral Thief  
- Sticky Web  
- Strength Sap  

Gyarados-Mega @ Toxic Orb  
Ability: Poison Heal  
Tera Type: Water  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Fishious Rend  
- Ceaseless Edge  
- Swords Dance  
- Spiky Shield  

Zacian-Crowned @ Covert Cloak  
Ability: Primordial Sea  
Tera Type: Fairy  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Fishious Rend  
- Magical Torque  
- Strength Sap  
- Stone Axe