Talk:Mountain Glenn (episode)/@comment-24389754-20150411171837/@comment-4010415-20150412184838

It's possible that someone can influence how Dust moves, though I think Weiss has a lot more control of how Dust moves and manifests due to her Semblance.

Her glyphs' raw form is controlling motion. We've seen that they can push, pull, and even stop things. I'm pretty sure that she uses her glyphs to control how the ice crystals formed by ice Dust manifest. We've seen her create a wall of ice to save Ruby in "Players and Pieces" with a glyph on the ground beneath them. In "No Brakes," when she has the ice encase herself and her teammates, you can see a glyph under them for a split second. In "Breach," she charges up a glyph and then creates a giant sword out of ice.