Talk:Glynda Goodwitch/@comment-182.55.214.75-20160918094903/@comment-4010415-20161004132148

Aura is fuel for Semblance, and Aura can be used to activate Dust. Glynda could've used her telekinesis Semblance to get ice (and I guess lightning?) Dust into the sky and spread it out in a way where it would be an area of effect attack that would hit the entire airship. She even waved her crop downward to get the ice shards to start falling.

When Weiss made ice shards during RWBY vs ABRN, she made them fly toward Bolin. That action of them flying toward Bolin is what I was talking about. She has a glyph under her, but not under where the ice shards flew through the air. Those foggy cloudy steam whatever projectiles that Mercury makes seem to be under his control and may be produced by Dust that he stores in his prosthetics or the bullets we can see loaded in his boots. When Amber used the fire Dust crystal on her staff against Mercury, she directed a steady stream of fire directly toward him.

I think it's entirely possible that, when someone creates something using Dust, they're able to control it to some extent. This may be why steam Dust exists, when someone could easily use water Dust and fire Dust separately to create steam if they want. It's possible that, if someone uses fire Dust on water produced by water Dust, the steam that results will not be under their control. However, if they use steam Dust to create steam, they can control that steam because it came from the Dust that they used to directly create it.

As for "anyone can do the same"... If they have trained and practiced enough, sure. World of Remnant: Aura said that using raw Dust requires discipline so the user doesn't lose control of the Dust's power. It probably takes a lot of training and practice to learn how to do the more advanced techniques of raw Dust, which could be why Weiss cheats by using her glyphs (which manipulate movement) to force ice Dust into special shapes like a sword, a fist, or a dome of ice spikes.