Grave Licid

{x}{b}, {t}: Grave Licid loses this ability and
becomes an Aura enchantment with enchant
creature. Return target creature card with
power X from your graveyard to the battlefield.
Attach Grave Licid to that creature. You may
pay {b} to end this effect.
Enchanted creature gets +1/+0 and has "When
Grave Licid becomes unattached from this
creature, sacrifice this creature."