Mine's a little odd. Introducing: Tank Scrafty.
Ability: Shed Skin
Nature: Careful (-sp atk, +sp def).
EVs: 252 Hp and 128 sp def and def.
Item: Rocky Helmet/Leftovers/Shell Bell
Moves: Bulk Up (boost)
Stone Edge/Zen Headbutt (coverage)
Drain Punch (Stab+Heal)
Toxic/Double Team (Poison or boost)
There's a lot of flexibility for the 4th move. Detect/Protect, Amnesia, round out coverage by having Stone Edge AND Zen Headbutt.