Sauron, the Necromancer

Menace
Whenever Sauron, the Necromancer
attacks, exile target creature card from your
graveyard. Create a tapped and attacking
token that's a copy of that card, except it's
a 3/3 black Wraith with menace. At the
beginning of the next end step, exile that
token unless Sauron is your Ring-bearer.