Try this guy.
EVs: 200 Hp, 58 Defense, 252 S.Defense
Protect/Payback: Stalling or Damage
Toxic/Payback/Heal-bell: Stalling or Damage or Team support
Also my Grotle set from the Torterra moveset question has proven to be excellent in the lower tiers.
EVs: 252 Defense, 252 S.Defense, 6 Hp
Stock-pile: Boost those Defenses
Leech-seed: Passive and Healing