I've been using roserade with some success. It's pretty bulky, has a bit of recovery with leech seed and aromatherapy is very nice to have.
Here's what I've been using:
Roserade @ Black Sludge
Ability: Natural Cure
EVs: 252 HP / 40 Def / 216 SpD
Calm Nature
- Leech Seed
- Toxic Spikes
-...