Zekrom @ Life Orb  
Ability: Sword of Ruin  
Tera Type: Dragon  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shift Gear  
- Bolt Strike  
- Glacial Lance  
- Strength Sap  

Steelix-Mega @ Leftovers  
Ability: Regenerator  
Tera Type: Steel  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Infestation  
- Salt Cure  
- Burning Bulwark  
- Strength Sap  

Toxapex @ Assault Vest  
Ability: Ice Scales  
Tera Type: Poison  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Stone Axe  
- Clear Smog  
- Salt Cure  
- U-turn  

Altaria-Mega @ Assault Vest  
Ability: Regenerator  
Tera Type: Dragon  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Rapid Spin  
- Nuzzle  
- Boomburst  
- U-turn  

Hydrapple @ Ability Shield  
Ability: Fur Coat  
Tera Type: Grass  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk  
- Matcha Gotcha  
- Topsy-Turvy  
- Spikes  
- Strength Sap  

Lopunny-Mega @ Leftovers  
Ability: Stench  
Tera Type: Normal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Coil  
- Population Bomb  
- Knock Off  
- Encore