I can't help but think that D.C Comics gave people a way to make their human oc's as powerful as Superman. I'm of course talking about Platinum Kryptonite. I feel as though there might be too many Krypton born oc's. Give the oc's a bit of a sort of Gotham background of having it rough, then stumbling upon the P.K. D.C comics gave you a a canonical way to make super-powered characters. All you gotta do is take advantage. Not telling you what to do, just a little rant I had to get off my chest.