Grave Dweller

{b}{b}:regenerate Grave Dweller
When Grave Dweller enters the battlefield, put X cards from your graveyard into your hand, where X is the number of Zombies in play.
{b}{b},{t}: Put X Zombie creature tokens into play, where X is Grave Dweller's power.
"I may be dead but I will crawl from the grave to rip out your heart."