@Sunn At the beginning, they say those suffering mentally, particularly with PTSD and other such conditions, are susceptible to losing some of their abilities. I think he would be a class S restorer had he been at 100% - but he's lost a lot of power, so he currently sits in class A 
I'm quite straightforward & tend to answer questions if i see them. 
Please forgive me if i come across as blunt and/or take you too seriously.
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