Board Thread:Speculation House/@comment-14138255-20140801004849/@comment-96.254.157.84-20140801200938

Dust is used to form her Semblance. That's why she has seven different types in Myrtenaster, each with it's own different ability. Just like Yang's Ember Celica in conjuction with her fire Semblance or Pyrrha's polarity Semblance.