Board Thread:Speculation House/@comment-14138255-20160807005311/@comment-3257939-20161012204507

It's not just the fact that the power is stated to be only anti-Grimm. How would that flash leave a flesh wound that would later turn into a scar? In any case it should be a permanent burn mark.

Nah, I'm thinking Qrow had something to do with it when he went to pick Ruby at that tower, assuming he was right behind her and got there before Cinder could do anything to her.