Our first OC was terrible, rather overpowered and probably a Gary Stu. Certainly lacking in quality. He wasn't overpowered on his own in that he could've destroyed armies or such, but rather in having creator's plot armor and a few nasty things like that. the GMs in that RP weren't forceful enough, so they didn't stop him, or another really overpowered character, from wreaking havoc upon the RP.