Ralts @ Black Sludge
Ability: Trace  
Tera Type: Dark / Ghost
EVs: 252 Spe  
Hasty Nature  
IVs: 0 HP / 0 Atk / 0 Def / 0 SpA / 0 SpD  
- Substitute  
- Taunt  
- Imprison / Encore
- Heal Pulse / Encore / Teleport / Trick Room