Necromancy

You may cast Necromancy as an instant, if you
do, bury it at end of turn.
When you play Necromancy, choose target
creature in any graveyard. When Necromancy
comes into play, put that creature into play as
though it were just played and Necromancy
becomes a creature enchantment that targets
the creature. If Necromancy leaves play, bury
the creature.