Kremosk, Titan of the Deep

Indestructible
Whenever a fish enters the battlefield under your control, each opponent discards a card.
Imprisoned 8 (this creature enters the battlefield with
8 chain counters on it. a player may attack this
creature instead of another player to remove chain
counters from it eqaul to the damage dealt to it.
until there are no chain counters on this creature, it
cannot attack or block)