Toxapex @ Black Sludge/ Rocky Helmet
Ability: Prankster  
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Knock Off / Toxic Spikes
- Scald / Toxic Spikes
- Haze  
- Recover

Toxapex @ Black Sludge  
Ability: Magic Bounce / Volt Absorb
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Infestation
- Recover
- Knock Off 
- Scald