Haldir, Undead Bear

Menace Whenever this attacks, it gets +X/+0 until the end of turn, where X is the number of creature cards in your graveyard. Whenever a creature an opponent controls dies, put a +1/+1 counter on Haldir, Undead Bear, and you gain 1 life. When Haldir, Undead Bear dies or gets destroyed, you lose 5 life and you return it to the battlefield transformed under it’s owners control at the beginning of the next end step. {/fontsize}