Mewtwo-Mega-X @ Life Orb  
Ability: Magic Guard  
Tera Type: Psychic  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Close Combat  
- Lumina Crash  
- Steel Beam  
- Strength Sap  

Arceus-Fairy @ Covert Cloak  
Ability: Ice Scales  
Tera Type: Fairy  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Shore Up  
- Magical Torque  
- Glare  
- Court Change  

Steelix-Mega @ Assault Vest  
Ability: Regenerator  
Tera Type: Steel  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Gigaton Hammer  
- Stone Axe  
- Knock Off  
- U-turn  

Yveltal @ Heavy-Duty Boots  
Ability: Aerilate  
Tera Type: Dark  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Boomburst  
- Gigaton Hammer  
- Rapid Spin  
- Strength Sap  

Eternatus @ Black Sludge  
Ability: Fur Coat  
Tera Type: Flying  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Strength Sap  
- Draco Meteor  
- Torch Song  
- Spikes  

Pheromosa @ Choice Band  
Ability: Sword of Ruin  
Tera Type: Bug  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- U-turn  
- Close Combat  
- Gigaton Hammer  
- Wicked Blow