Calyrex-Shadow @ Leftovers  
Ability: As One (Spectrier)  
Tera Type: Fairy  
EVs: 16 HP / 252 SpA / 240 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Calm Mind  
- Substitute  
- Tera Blast  

Groudon @ Leftovers  
Ability: Drought  
Tera Type: Fire  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Stealth Rock  
- Spikes  
- Roar  
- Will-O-Wisp  

Blissey @ Heavy-Duty Boots  
Ability: Natural Cure  
Tera Type: Dark  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Shadow Ball  
- Thunder Wave  
- Heal Bell  
- Soft-Boiled  

Regieleki @ Heavy-Duty Boots  
Ability: Transistor  
Tera Type: Normal  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Volt Switch  
- Rapid Spin  
- Thunderbolt  
- Extreme Speed  

Miraidon @ Choice Scarf  
Ability: Hadron Engine  
Tera Type: Fairy  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- U-turn  
- Electro Drift  
- Draco Meteor  
- Overheat  

Mewtwo @ Choice Scarf  
Ability: Pressure  
Tera Type: Fairy  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Focus Blast  
- Trick  
- Shadow Ball