Board Thread:Speculation House/@comment-24016701-20131007192753/@comment-3146930-20131102134844

Angren Túrë wrote: That makes sense, but It doesn't appear as if Semblance use weakens someone--and I'm pretty sure using Moonslice has negative consequences for Adam, judging by Blake's "Are you sure!?" in the Black Trailer.

Semblance can make you tired. After Weiss makes a bunch of Glyphs to help Ruby kill the Nevermore, she is seen leaning over in exhaustion. (10:28)