Ideally I want it to survive being charged by at least 60 boyz and 20 nobz with klaws at once. I have a buddy who plays such a horde army, and I think it'd be pretty amusing if I attempted to create the most absurdly expensive single unit I could, and tempt him to throw his entire army at it. It seems that half of all space marine art depicts them surrounded on all sides, just mercilessly beating down wave after wave of the oncoming horde.
