Board Thread:Speculation House/@comment-10380701-20131018004029/@comment-4830106-20131021031832

DQueenie13 wrote:

But if there's Aura, Dust, and Semblance, there probably exists an 'anti' that is used to negate it; if such a thing exists, they might use it on the perimeter of the fighting ring so nobody outside can interfere. Or perhaps that can be how the Grim combat it.