Dance of the Dead

Enchant creature card in a graveyard.
When Dance of the Dead enters the battlefield,
put enchanted creature card onto the battlefield
tapped under your control and attach Dance of
the Dead to it. When Dance of the Dead leaves
the battlefield, that creature's controller sacrifices
it. Enchanted creature gets +1/+1 and doesn't
untap during its controller's untap step.
At the beginning of the upkeep of enchanted
creature's controller, that player may pay {1}{b}. If the player does, untap that