User blog comment:Zolnir/Cinder Fall (Part Two)/@comment-3257939-20140606203958

Well, it could be as simple as Cinder being so powerful that her aura leaks through her entire body. After all, she's the main antagonist of the show, she has to be strong. If Team RWBY was capable of taking her down by themselves, it would against the rules since she's the main villain.