Board Thread:Speculation House/@comment-14138255-20140829002738/@comment-226878-20140902070855

It has been argued that perhaps not everyone can have their Aura unlocked and thus not have a semblance. Maybe either of those qualities is a necessity for becoming a Hunter and therefore not everyone can become a Hunter. Most likely, the most common supernatural way to combat the Grimm was by using Dust. People who couldn't access their Aura would use swords, spears, axes, and bows. People who could would use Dust either in its raw form or in the three documented alternative methods (as ammunition or by infusing into clothing or directly into the body). It's possible the latter two options both come with severe side effects (possibly "power mania") but also would lead to Dust intermingling with Aura to create Semblances. It could be that this is how Hunters were born and would become a class unto themselves.