Molten Fist is a tricky card. It's "just" an Attack Common, and you should probably treat it that way, but in theory it can provide massive output if you're able to play it on an enemy with lots of Vulnerable on it already. My experience has been that decks which apply lots of Vulnerable can benefit from cards which /aren't/ just damage Commons though. Like, rather than playing Molten Fist, I'd like to just have a Dominate or Bully that I play already.
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