I'm just gunna say that the Paradox ability will probably be shut down fast. That's too much because your basically controlling the RP with that. Prescience would only work if you either got the ok from everyone on what would happen or if you made the visions vague as hell. That's for his magic, as for skills to say he is a sword fighter with almost no equal is kind of making seem like your measuring dicks here. No one is trying to be the best which is why (if I remember correctly) no one has put that their character is the best at anything they are just skilled. While yeah the magic that some characters have is op it's not controlling of the battlefield, most of the spells have th potential to fail or miss the target but yours kind of requires you to control the RP. All in all, Kelsier is almost inhuman with the amount of control he has over everything and it kind of makes it boring to have a character that has such an easy time doing things. Makes every other character seem useless in comparison.

Edit:That's just my two cents...