Arcanum Wings | Magic: The Gathering
Formats Arcanum Wings is Legal in
Official Oracle Text for Arcanum Wings
Enchanted creature has flying.
Aura swap (: Exchange this Aura with an Aura card in your hand.)
Official Rulings for Arcanum Wings
5/1/2007 : If on resolution, half the exchange can't be completed (such as if the only Aura in your hand can't enchant the permanent), nothing happens.