Silverbolt, the original of Argurous Astraph, is IIRC a magic-based character. She was born with what looks like an ancient Greek silver coin embedded in the center of her chest (which for never-explored reasons was not surgically removed as a bizarre birth defect); Silverbolt's "chrome" flows out of the coin to coat her body when she wills it. I don't think this was ever carried over to AA, but I don't have a copy of IST handy at the moment to check.
-- Bob
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Then the horns kicked in...
...and my shoes began to squeak.
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.