Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 248 HP / 68 Def / 176 SpD / 16 Spe  
Impish Nature  
- Toxic  
- Spikes  
- Precipice Blades  
- Dragon Tail  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Fairy  
EVs: 248 HP / 188 Def / 56 SpD / 16 Spe  
Impish Nature  
- Thunder Wave  
- Brave Bird  
- Defog  
- Whirlwind  

Zygarde @ Mental Herb  
Ability: Power Construct  
Tera Type: Dark  
EVs: 248 HP / 204 Def / 56 Spe  
Impish Nature  
- Thousand Arrows  
- Coil  
- Glare  
- Rest  

Arceus @ Dread Plate  
Ability: Multitype  
Tera Type: Steel  
EVs: 248 HP / 104 Def / 156 Spe  
Timid Nature  
IVs: 0 Atk  
- Whirlpool  
- Perish Song  
- Foul Play  
- Recover  

Garganacl @ Leftovers  
Ability: Purifying Salt  
Tera Type: Fairy  
EVs: 240 HP / 24 Def / 240 SpD / 4 Spe  
Careful Nature  
- Stealth Rock  
- Salt Cure  
- Protect  
- Recover  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
Shiny: Yes  
Tera Type: Water  
EVs: 240 HP / 212 Def / 40 SpA / 16 Spe  
Modest Nature  
IVs: 0 Atk  
- Rest  
- Calm Mind  
- Origin Pulse  
- Ice Beam