Far Realm Plague

When Far Realm Plague enters the battlefield, if
it is on the battlefield, it becomes an Aura with
'enchant creature put onto the battlefield with
Far Realm Plague.' Put target creature card from
a graveyard onto the battlefield under your
control and attach Far Realm Plague to it. When
Far Realm Plague leaves the battlefield, exile that creature. If the creature would leave the battlefield, exile it.