by subtle fox » Tue Apr 21, 2015 11:07 am
Hey, welcome. The lettered classes were just a spur of the moment sort of thing. Somewhere in the first few posts it mentions that the mutants who originated from Precision Labs were given letter grades, A to F.
Grade A is the strongest, given to those with control over elements, such as Rhianna, the cryokinetic. I think it could also refer to those with extremely powerful offensive powers, but they could fall into Grade B. Grade F is used for those with weak or purely defensive powers, like my own Erin. His powers are for hiding himself, and strengthening others. If he'd been created/raised in one of the labs, he'd likely be graded as an E or F, a D at the most.
I hoped this helped. If anyone else wants to add something, I'm sure I missed plenty c: