Board Thread:General Discussion/@comment-110.146.149.161-20150813074512/@comment-98.181.17.154-20150829111325

Could be a semblence thing. Weiss has her glyphs, so she can use more or less every type of dust, Maybe Winter doesn't have that and Father-Dearest didn't like that.

Something tells me its probably that, as to why its Weiss and not Winter. Since because of the glyphs, she knows just how everything interacts with eachother.