@Holy Soldier
Frankly Kitty is right there man, if you read wizard's comments from earlier 'He can do everything a kyptonian can do.. and even then, he can do more' a Kyptonian is insanely powerful to start with, especially compared to all the other characters, then your character can do even more than that (even if he doesn't have it yet he would eventually), just makings of an insanely powerful character.
With Tales' it's probably bit of the fact it's a fifth dimensional Imp, even if his portraying it as not being that powerful, it's been shown many times the imps can be so powerful they can break all reality and there for would become to strong, that and his pretty much 3-4 characters in one, and he'll know all inside information about every single character so that to is to much.
Your logic is flawed in many ways. Beast boy is super op if you go by that logic and so is raven. Being a fifth dimensional imp doesn't make any difference if his powers aren't at those levels. I fail to see how you and WizardGirl have any points