Well since he is the no.1 person in the world in terms of tweaking CAD's I still think that if it comes to that he wont be beaten if he fights against combat-levels. But I agree that he might not be able to fight them all on his own, so that's why I wonder why would he do it alone? Surely the reason he went to Magic school might be more than just the pretence he puts on?? But I admit that I am still a novice to this novel, as such I only know what whise put up in spoilers and the others are just speculation based on what I've read.