[Voltolos]

I was thinking something kinda like this:
Roopushin @ Leftovers
Ability: Iron Fist
EVs: 252 HP / 252 Atk / 4 SpD
Nature: Impish
- Substitute
- Bulk Up
- Drain Punch
- Focus Punch
Really and easy Roopushin to use. Simply use his giant HP in a substitute, and bulk up 'till it breaks. Not only does Bulk Up boosts his frightening attack, but it also boosts his big defense too. Drain punch gets 135 base power, I believe, with Iron Fist and STAB. It also can OHKO Blissey after a few Bulk Ups, and blissey's 714 HP leads to him healing 357 HP, almost his max HP. Of course, Focus Punch when he doesn't need the heal.