Y (Latios) @ Twisted Spoon  
Ability: Levitate  
Level: 50  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Psychic  
- Ice Beam  
- Thunderbolt  
- Surf  

O (Slaking) @ Choice Band  
Ability: Truant  
Level: 50  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Hyper Beam  
- Earthquake  
- Shadow Ball  
- Double-Edge  

! (Gengar) @ Quick Claw  
Ability: Levitate  
Level: 50  
EVs: 180 Def / 248 SpA / 76 Spe  
Rash Nature  
IVs: 2 Atk / 30 SpA  
- Hidden Power [Grass]  
- Ice Punch  
- Fire Punch  
- Destiny Bond