Aura blank
Aura blank is the condition of an individual having an Aura that is completely devoid of elemental alignment, which is considered highly unusual. It is even rarer than possession of the Void element, and thus, aura blank magicians are highly sought after due to their natural affinity for Disciplines - as Disciplines require unaligned Aura and aura blanks don't have to filter elemental alignments out like normal casters - especially Countercasting.