Spectral Adversary [Innistrad: Double Feature]

Set: Innistrad: Double Feature Type: Creature — Spirit Rarity: Mythic Cost: {1}{U} FlashFlyingWhen Spectral Adversary enters the battlefield, you may pay {1}{U} any number of times. When you pay this cost one or more times, put that many +1/+1 counters on Spectral Adversary, then up to that many other target artifacts, creatures, and/or enchantments phase out.