The Embodyment of the Deep

Indestructible, Trample
Madness {p/b}{p/b}{p/b}{p/b}{p/b} (If you discard this card,
discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
Whenever you take damage, Amass X where X is
the amount of damage you took. (Put X +1/+1 counters on an Army you control. If you don't
control one, create a 0/0 black Zombie Army
creature token first.)