Board Thread:Speculation House/@comment-36105773-20180710195102/@comment-26018514-20180714223406

I was mostly posting that warning because of your last question thread... this one had also been gone over too but far earlier.

The general consensus is that at that time in RWBY's development, Cinder was an advanced dust mage who used dust infused clothing(this is supported in show by Glynda) and these "runes" are actually advanced dust usage anyone can learn(I believe this was clarified by RT staff at some point in a commentary or stream, but idr where as it was so long ago, I do recall they at least said it was "runes" as opposed to glyphs, and that it was not Cinder's semblance).