1) Well I admit that I make some grammar mistakes, that I always try to get rid of. But since English is not my first language, I still make them, what irritates me more most. If its possible I would like to be pointed where they are, so hopefully I won't make them again. I really do anything on this site just to try to make my grammar better.
2)Yeah, problem with custom is fact, that they always come out more powerful than you want them to be. I tend to unintentionally make them too overpowered.
3)Length of paragraph depends on country. Where I live it can count as paragraph. But I didn't realized it went to Kaiba character cliche.
4)I don't see it as that much cliche. After all I do see this type from time to time, I don't think its that common. But after all, since concept of storytelling exist from so long its almost impossible to create something that is not cliche in some way.

Well I will take my CS down for now, and I will try again later. Maybe next time it will do better.