Gwaihir, Greatest of the Eagles (Showcase Scrolls) (417) [Tales of Middle-earth Commander] [Showcase]

Flying Whenever Gwaihir attacks, target attacking creature gains flying until end of turn. At the beginning of each end step, if you gained 3 or more life this turn, create a 3/3 white Bird creature token with flying and "Whenever this token attacks, target attacking creature gains flying until end of turn."