Grimgrin Corpse Born

“<div class="SecretLair"><strong> Creepshow</strong></div><br>Grimgrin, Corpse-Born enters the battlefield tapped and doesn't untap during your untap step. <br> Sacrifice another creature: Untap Grimgrin and put a +1/+1 counter on it. <br> Whenever Grimgrin attacks, destroy target creature defending player controls, then put a +1/+1 counter on Grimgrin.”