Board Thread:Off Topic/@comment-26397825-20151211051732/@comment-26397825-20160105021434

Also, we have no indication that semblance can still function after aura levels have dropped to zero. The only person we have seen use any powers after losing all their aura is Amber, and she's a special case being a Maiden and all that. Semblance is the manifestation of your aura; it stands to reason that with no aura you have no semblance that can be used.