Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 248 HP / 108 Atk / 68 Def / 40 SpD / 44 Spe  
Impish Nature  
- Swords Dance  
- Rock Tomb  
- Precipice Blades  
- Heat Crash  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Flying  
EVs: 248 HP / 176 Atk / 16 Def / 56 SpD / 12 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Thunder Wave  
- Defog  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
Tera Type: Poison  
EVs: 248 HP / 4 Def / 4 SpA / 104 SpD / 148 Spe  
Timid Nature  
IVs: 0 Atk  
- Taunt  
- Recover  
- Calm Mind  
- Judgment  

Zygarde @ Leftovers  
Ability: Power Construct  
Tera Type: Fairy  
EVs: 252 HP / 220 Def / 36 SpD  
Impish Nature  
- Coil  
- Toxic  
- Thousand Arrows  
- Rest  

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

Eternatus @ Choice Specs  
Ability: Pressure  
Tera Type: Dragon  
EVs: 24 HP / 8 Def / 224 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Sludge Bomb  
- Fire Blast  
- Draco Meteor