Dusclops @ Eviolite  
Ability: Pressure  
EVs: 252 HP / 4 Def / 252 SpD  OR 252 HP / 252 Def / 4 SpD
Calm or Bold Nature  
- Rest  
- Sleep Talk  
- Toxic  
- Seismic Toss 

other options: Night Shade, Mixed defensive, Calm Mind Rest-Talk Ice Beam or Shadow Ball,