Existing - Leviathan Extreme, if you die from falling off the edge, when he does a tidal wave type of move, your corpse washes up on deck. You're still out of the fight, more of a dark "well then." type of thing.

And a Dark aligned Primal, like Lich, that if you die from an unrecoverable situation, such as falling off the end of the arena, Lich then animates your corpse to fight against your own party.