User blog comment:Zathronas/Analysis by an author: Volume 2 episode 11: No brakes/@comment-3146930-20141024021616/@comment-24218038-20141025001339

Okay it seem that Yang's semblance is confusing people.

She has the ability to absorb hits and redirect it through any part of her body. This has been confirmed. Also from what Barbara said on the aftershow, she cannot store it for a rainy day she either uses it or it dissipates.

Hope it clears up any confusions.