Eternities Incursion

Enchant creature card in your hand.
When Eternities Incursion enters the battlefield, if it's on the battlefield, it loses "enchant creature card in your hand" and gains "enchant creature put onto the battlefield with Eternities Incursion." Put enchanted creature card to the battlefield under your control and attach Eternities Incursion to it. When Eternities Incursion leaves the battlefield, exile enchanted creature.