Vibrava @ Eviolite  
Ability: Levitate  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- Earthquake  
- U-turn  
- Roost  
- Defog  

Toxic is a common option over U-Turn. Sp.Def Vibrava is also ok, but would not beat something like SD Combusken.