Bulky Tenta (Tentacruel) @ Black Sludge  
Ability: Liquid Ooze  
EVs: 144 HP / 228 Def / 60 SpA / 76 Spe  
Timid Nature  
IVs: 0 Atk  
- Surf  
- Sludge Bomb  /  Ice Beam  /  Knock Off
- Rapid Spin  
- Toxic Spikes  

Offensive Tenta (Tentacruel) @ Black Sludge  
Ability: Clear Body  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hydro Pump  
- Sludge Bomb  
- Ice Beam  
- Rapid Spin  /  Toxic Spikes