Board Thread:Speculation House/@comment-14138255-20141024002244/@comment-11188061-20141025071950

Neo's semblance seems to be a portal of some sort.

At the beginning of her fight with Yang, she seems to have used her Semblance to blow Yang backwards. It cannot actually be the umbrella (though it can be a combination of both), because it was pointed somewhere at the lower body or stomach, and Yang was blown away like she's punched in the face.

So one, she was beaten back by an invisible wall. Pretty plausible, considering the illusionary wall she conjured during Episode 4. Two, Yang punched herself as her blow was reflected right back at her.

The other very plausible possibility is what we've already seen in Episode 4 - illusion. Yang may have been fighting a fake this entire time.