Hippowdon @ Rocky Helmet  
Ability: Sand Stream  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Earthquake  
- Body Press  
- Slack Off  
- Stealth Rock  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Toxic Spikes  
- Baneful Bunker  
- Recover  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Anchor Shot  
- Body Press  
- Stealth Rock  
- Strength Sap  

Corviknight @ Rocky Helmet  
Ability: Pressure  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- Body Press  
- U-turn  
- Roost  
- Defog  

Gyarados @ Heavy-Duty Boots  
Ability: Intimidate  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Liquidation  
- Toxic  
- Roost  
- Defog