Board Thread:Off Topic/@comment-27082610-20170729051211/@comment-26397825-20171104033412

The base ability is literally something that can be achieved with Fire Dust quicker and easier than your tiers allow for. It does nothing anyone with a little bit of Fire Dust can't do. Even some of the Dust interactions are simple Dust things; Also, once Aura is gone there is no sembance usage whatsoever unless you have a passive semblance like Qrow's, so once the Jace's aura is depleted he wouldn't even be able to light a candle.
 * Ice Dust freezes people in place and aura would protect them from an ice burn. Unless they have no aura left, in which case frostbite and ice burns are to be expected from coming into contact with pure ice suddenly and being frozen in place.
 * Fire and Water Dust are known to create Steam Dust, and even if you don't have actual steam dust you can mix Fire and Water on the spot, or even Fire and Ice in the case of Freezerburn.

Overall, it's bland and nothing that can't be done with general Dust usage (not even clever Dust usage or out of the box thinking). The idea of dropping the burning aspect and making it an aura replenisher for allies was a better one.