Grimgrin, Corpse-Born

Grimgrin, Corpse-Born enters the
battlefield tapped and doesn't untap during
you untapped step.
Sacrifice another creature: Untap Grimgrin
and
put a +1/+1 counter on it.
Whenever Grimgrin attacks, destroy
target creature an opponent controls,
then put a +1/+1 counter on GrimGrin.