Ggnashtafgarak, Crab Titan

Crabs you control get +1/+1 and have
deathtouch.
{t}{b}{b}: Create a number of 0/1 blue/black crab
creature tokens equal to the number of creatures
killed by crabs this turn.
At first we thought it was a mountain, until we saw
the monstrous claws. We never noticed its spawn
swarming underneath the ship until it was too late.
—Silthazar, Former Ship Captain