Calyrex-Shadow @ Choice Scarf  
Ability: As One (Spectrier)  
Tera Type: Steel  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psychic  
- Baton Pass  
- Trick  

Miraidon @ Heavy-Duty Boots  
Ability: Hadron Engine  
Tera Type: Dark  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Draco Meteor  
- Electro Drift  
- U-turn  
- Calm Mind  

Koraidon @ Choice Band  
Ability: Orichalcum Pulse  
Tera Type: Fire  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Outrage  
- U-turn  
- Flare Blitz  
- Low Kick  

Arceus @ Heavy-Duty Boots  
Ability: Multitype  
Tera Type: Ghost  
EVs: 252 HP / 200 Atk / 56 Spe  
Adamant Nature  
- Swords Dance  
- Extreme Speed  
- Recover  
- Shadow Claw  

Eternatus @ Eject Pack  
Ability: Pressure  
Tera Type: Steel  
EVs: 224 HP / 108 SpA / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Toxic  
- Fire Blast  
- Shadow Ball  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
Tera Type: Water  
EVs: 248 HP / 136 Def / 124 Spe  
Bold Nature  
IVs: 0 Atk  
- Recover  
- Calm Mind  
- Judgment  
- Ice Beam