Niv - Can melt Mizzium

Nonsense, the Firemind said but did not elaborate. The goblin could feel the vast intelligence racing, ablaze with the immediacy of the fight, and decided to think more positively. Dragon fire was one of the few things that could melt the magically forged element mizzium, and Crixizix’s observosphere would not likely survive a stray shot.

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Dissension, Chapter 3