Gengar @ Life Orb  
Ability: Cursed Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Sludge Bomb  
- Focus Blast  
- Taunt / Substitute / Icy Wind

Gengar @ Choice Scarf  
Ability: Cursed Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Sludge Bomb  
- Focus Blast  
- Trick / Thunderbolt / Icy Wind

Gengar @ Choice Specs  
Ability: Cursed Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Sludge Bomb  
- Focus Blast  
- Trick / Thunderbolt / Icy Wind

Gengar @ Black Sludge  
Ability: Cursed Body  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hex  
- Will-O-Wisp  
- Substitute / Sludge Bomb
- Taunt