Board Thread:General Discussion/@comment-110.146.149.161-20150813074512/@comment-25555436-20150903000054

Well, it explains reasonably how Semblances can be combined with Dust. However, it's different using the Semblance to activate Dust, and activating Dust and then the Semblance to move it or whatever which is what Weiss does.

The former is a variation of a spell, the second is 2 spells used in sucesion.