Bone and Sickle

Enchant creature card in a graveyard When Bone and Sickle enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Bone and Sickle." Return enchanted creature card to the battlefield under your control and attach Bone and Sickle to it. When Bone and Sickle leaves the battlefield, that creature's controller sacrifices it. Enchanted creature gets -1/-0.