Invasion of Kaladesh // Aetherwing, Golden-Scale Flagship
URBattle — Siege // Legendary Artifact — Vehicle
(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When this Siege enters, create a 1/1 colorless Thopter artifact creature token with flying.legal in commander · modern · pioneer · legacy