Corviknight @ Shed Shell  
Ability: Pressure  
EVs: 248 HP / 8 Atk / 252 SpD  
Careful Nature  
- Iron Defense  
- Defog  
- Brave Bird  
- Roost  

Dragonite @ Heavy-Duty Boots  
Ability: Multiscale  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
- Ice Beam  
- Earthquake  
- Roost  
- Defog  

Buzzwole @ Heavy-Duty Boots  
Ability: Beast Boost  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Drain Punch  
- Ice Punch  
- Toxic  
- Roost  

Cratersmash (Quagsire) @ Leftovers  
Ability: Unaware  
EVs: 252 HP / 156 Def / 100 SpD  
Relaxed Nature  
IVs: 0 Atk  
- Scald  
- Haze  
- Toxic  
- Recover  

Toxapex @ Shed Shell  
Ability: Regenerator  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- Recover  
- Light Screen  
- Poison Jab  
- Knock Off  

Tanksey (Blissey) (F) @ Heavy-Duty Boots  
Ability: Natural Cure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Soft-Boiled  
- Toxic  
- Heal Bell