User blog comment:Da1337wolf/Dust and Aura, a sudden stroke of genius, bs, or both/@comment-11188061-20130826045612/@comment-3146930-20130826104314

Basically Dust causes Dust-Circles to appear, as well as Dust usually being Elemental based (fire, air, ice, ext.). It is also energy based, as one can move objects with it or cause explosions.

Aura is inside you. For those that are able to use it, it can increase your overall power in battle by making your hits stronger or allow you to move faster. In some cases, you may even be able to fire your aura from your weapon.