User blog comment:Icchi/Dust uses/@comment-13593058-20130805161731/@comment-12720931-20130805180355

Kerry said the weapons used Dust, but you dont need a weapon to use Dust, and that Dust glows. So we can assume that many (or most) weapons will use Dust, and all that glows has a high chance to be Dust, so it very likely Yang's Glow is Dust.

Dust was the power that let Humans counter the Grim creatures, so its kinda logical that all Huntsmans and Huntress will use Dust. Of course this doesn't mean ALL of them will use Dust, but its most probably they will