Rayquaza @ Choice Band  
Ability: Air Lock  
Tera Type: Flying  
EVs: 32 HP / 236 Atk / 24 Def / 216 Spe  
Jolly Nature  
- Dragon Ascent  
- U-turn  
- Earthquake  
- Extreme Speed  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 248 HP / 140 Def / 120 SpD  
Impish Nature  
- Stealth Rock  
- Precipice Blades  
- Rock Tomb  
- Roar  

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
Tera Type: Dark  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Taunt  
- Calm Mind  

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  

Ditto @ Choice Scarf  
Ability: Imposter  
Tera Type: Ghost  
EVs: 248 HP / 8 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Transform  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 248 HP / 204 Def / 56 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Whirlwind