Board Thread:Speculation House/@comment-66.176.183.83-20141004115910/@comment-4010415-20141004170137

The "shadow clone" thing is not a presumption. The only reason we know that her semblance involves creating clones of herself is because it was stated in the DVD/Bluray Directors Commentary, and it was referred to as "shadow."

Either way, her semblance involves her creating semi-solid clones of herself (given that she can leap off of them, as seen in Players and Pieces when she jumped off a clone toward the Nevermore, twice).