Haunter @ Eviolite  
Ability: Levitate  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Will-O-Wisp  
- Hex  
- Sludge Bomb

Haunter @ Choice Specs  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sludge Wave  
- Shadow Ball  
- Filler  
- Trick