Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 140 Def / 100 SpD / 16 Spe  
Impish Nature  
- Stealth Rock  
- Toxic  
- Precipice Blades  
- Stone Edge  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Dark  
EVs: 248 HP / 176 Atk / 20 Def / 56 SpD / 8 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Defog  
- Thunder Wave  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
Tera Type: Steel  
EVs: 248 HP / 124 Def / 136 Spe  
Bold Nature  
- Foul Play  
- Toxic  
- Dragon Tail  
- Recover  

Zygarde @ Leftovers  
Ability: Power Construct  
Tera Type: Fairy  
EVs: 200 HP / 248 Def / 60 Spe  
Impish Nature  
- Coil  
- Toxic  
- Thousand Arrows  
- Rest  

Eternatus @ Life Orb  
Ability: Pressure  
Tera Type: Dragon  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Sludge Bomb  
- Fire Blast  
- Recover  

Chansey @ Eviolite  
Ability: Natural Cure  
Tera Type: Grass  
EVs: 4 HP / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Seismic Toss  
- Aromatherapy  
- Teleport  
- Soft-Boiled