User blog comment:VedranTheII/Pretentious Diaries 2: What tricks would you teach your Aura?/@comment-10380701-20150718080559/@comment-4010415-20150718110819

Spirited is right about the lightning. We're even shown people casting lightning from their hands in the very first episode of the series, and then a couple episodes later, Ruby sneezes on yellow Dust, which produces electricity.

And I'm sure I've made my stance on the White Trailer just being a prototype run for Dust clear before. I feel like the nature of Dust has changed between the White Trailer and the show itself. Dust may no longer be able to create stat boosts all on its own. However, with Weiss' haste glyph, it has been shown that it can still create stat boosts when combined with Semblance.