Affinity for artifacts (This spell costs less to cast for each artifact you control.) Flying When Furnace Dragon enters the battlefield, if you cast it from your hand, exile all artifacts.
Official Rulings for Furnace Dragon
9/20/2013 : If a creature (such as Clone) enters the battlefield as a copy of this creature, the copy's "enters-the-battlefield" ability will still trigger as long as you cast that creature spell from your hand.
Comments on Furnace Dragon
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