Board Thread:Off Topic/@comment-26397825-20160419024928/@comment-24534644-20160422173819

Assuming we're going on the whole mirror-like-armor route with this semblance (which is what I take away from it), it sort of makes sense for Ice dust to make the Semblance more efficient. Ice is naturally reflective, and depending on the formations can function either as a mirror or a lens. In the case of the latter, reflected light or energy could be intensely focused and fired away, similar to a magnifying glass placed directly under sunlight.