Choice Scarf (Haunter) @ Choice Scarf  
Ability: Levitate  
Tera Type: Ghost / Poison / Fighting
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Sludge Bomb / Sludge Wave / Focus Blast
- Trick
- Focus Blast / Destiny Bond / Will-O-Wisp / Nasty Plot

Choice Specs (Haunter) @ Choice Specs  
Ability: Levitate  
Tera Type: Ghost / Fighting
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Sludge Bomb / Sludge Wave
- Focus Blast  
- Trick  

Nasty Plot (Haunter) @ Life Orb / Leftovers
Ability: Levitate  
Tera Type: Ghost / Fighting
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Shadow Ball  
- Sludge Bomb / Sludge Wave
- Focus Blast / Substitute / Will-O-Wisp