Mausoleum Wanderer [Eldritch Moon]

Set: Eldritch Moon Type: Creature — Spirit Rarity: Rare Cost: {U} FlyingWhenever another Spirit enters the battlefield under your control, Mausoleum Wanderer gets +1/+1 until end of turn.Sacrifice Mausoleum Wanderer: Counter target instant or sorcery spell unless its controller pays {X}, where X is Mausoleum Wanderer's power.