Flying
When Riftwing Cloudskate enters the battlefield, return target permanent to its owner's hand.
Suspend 3-{1}{U}
(Rather than cast this card from your hand, you may pay {1}{U} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost. It has haste.)