Cetitan @ Black Sludge  
Ability: Slush Rush  
Tera Type: Dark / Ghost / Rock
EVs: 252 Spe  
Naive Nature  
IVs: 6 HP / 0 Atk / 0 Def / 0 SpA / 0 SpD  
- Substitute  
- Belly Drum  
- Protect  
- Snowscape