Defensive (Gengar) @ Black Sludge  
Ability: Cursed Body  
Tera Type: Poison  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
- Metronome

Choice Specs (Gengar) @ Choice Specs  
Ability: Cursed Body  
Tera Type: Steel  
EVs: 252 HP / 4 Def / 252 SpA  
Quiet Nature  
- Metronome