Swalot @ Black Sludge  
Ability: Sticky Hold  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Curse  
- Fire Punch  
- Rest  
- Sleep Talk

Swalot @ Rocky Helmet or Black Sludge  
Ability: Sticky Hold  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
- Sludge Bomb  
- Earthquake  
- Rest  
- Sleep Talk   
---------------------
Optional Move(s):  
- Acid Spray
- Encore
- Gunk Shot
- Ice Beam 
- Protect
- Sludge Wave 
Optional Item(s): 
- Assault Vest
Optional Ability:  
- Liquid Ooze
Optional EV/IV(s): 
- 228 HP / 252 SpA / 28 Spe (Modest)