Shipbreaker Serpent

Shipbreaker Serpent enters the battlefield with
a +1/+1 counter on it.
Whenever Shipbreaker Serpent deals combat
damage to a player, you may remove a counter
from Shipbreaker Serpent. If you do, destroy
target artifact that player controls.
"They have less teeth than their multi-headed kin,
but the sheer strength of their enormous body is all
they need."