Board Thread:Speculation House/@comment-14138255-20140815002519/@comment-10390252-20140817144302

There is no indication of a 'natural' aura when Jaune's face was scratched by that branch. I suspect that the Henchmen may have been a special case; villain groups may have their own 'shadow' schools that teach the activation of aura (it would boost the longevity of their muscle, after all). However, I'm fairly sure that it is not widely known or even activated outside the Schools and those trained in its use.