User blog comment:Maki Kuronami/Monty in the 8-bit Salute Livestream/@comment-3146930-20140518233526/@comment-3146930-20140519001932

That would explain why that single bottle of Dust Weiss was swinging around caused fire, ice, and electricity to appear when Ruby sneezed. That always bothered me because you would think each type of Dust would only control one element. This would also explain why Glynda can make ice storms and control rocks with a weapon that doesn't appear to have a revolving Dust chamber like Weiss' rapier.