SD Skarm rocks! No one expects it either. Plus you can put LO on it with roost and drill peck really hurts.Well, in my "good" team that I actually use, I more use my "walls" as offense that takes lots of hits (SD Skarm, Empoleon, CM Jirachi).
100% true for me too :)3 walls, 2 sweepers, 1 support
Generally my ideal setup for most of the teams I've created.