Groudon @ Red Orb  
Ability: Drought  
Tera Type: Flying  
EVs: 248 HP / 56 Def / 192 SpD / 12 Spe  
Impish Nature  
- Stealth Rock  
- Dragon Tail  
- Earthquake  
- Rock Tomb  

Marshadow @ Choice Band  
Ability: Technician  
Tera Type: Ghost  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Poltergeist  
- Shadow Sneak  
- Spectral Thief  
- Low Kick  

Kyogre @ Blue Orb  
Ability: Drizzle  
Tera Type: Grass  
EVs: 248 HP / 252 Def / 8 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Scald  
- Sleep Talk  
- Rest  

Arceus-Ground @ Groundium Z  
Ability: Multitype  
Tera Type: Ground  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Stone Edge  
- Earthquake  
- Dragon Dance  
- Recover  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Fire  
EVs: 248 HP / 188 Atk / 52 SpD / 20 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Thunder Wave  
- Defog  

Eternatus @ Air Balloon  
Ability: Pressure  
Tera Type: Fairy  
EVs: 248 HP / 152 SpD / 108 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Toxic Spikes  
- Recover