Enchant creature card in a graveyard

When Animate Dead enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Animate Dead." Return enchanted creature card to the battlefield under your control and attach Animate Dead to it. When Animate Dead leaves the battlefield, that creature's controller sacrifices it.

Enchanted creature gets -1/-0.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)

Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Vigilance

Rabid Wombat gets +2/+2 for each Aura attached to it.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)

Whenever enchanted creature deals damage, you gain that much life.