生物~变形兽
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化形 (此牌随时都是所有生物类别。)
横置一个由你操控且未横置的生物:蛾粉化形获得飞行异能直到回合结束。
Since the activated ability doesn’t have a tap symbol in its cost, you can tap a creature (including Mothdust Changeling itself) that hasn’t been under your control since your most recent turn began to pay the cost.