Necromancy

You may cast Necromancy as though it had flash. If you
cast it any time a sorcery couldn't have been cast, the
controller of the permanent it becomes sacrifices it at the
beginning of the next cleanup step.

When Necromancy enters, if it's on the battlefield, it
becomes an Aura with "enchant creature put onto the
battlefield with Necromancy." Put target creature card
from a graveyard onto the battlefield under your control
and attach Necromancy to it. When Necromancy leaves
the battlefie