I'm put in the mind of someone who uses technomancy. Their primary is cerebromancy and secondary is electromancy, they don't necessarily build machines but they use their primary to bend the "wills" of machines (such as an AI) and their secondary to manipulate the body. 

I got a question though, if the Crystal Mirror reveals someone has a "dark" aura such as the one for Necromancy, what's the procedure then? Is that student pulled from the side to be vetted for secret necromancy classes? What if they're [i]really[/i] unfortunate and have two dark mana shades? Such as both necromancy [i]and[/i] hemomancy?