Wait, so the whole purpose of the artifact at the training grounds is to prevent injury by reverting it, as mentioned when even the knight captain, knowing Al's ability, said so during the entrance exam when he told Al to "go all out". But this other random noble kid's magic threatened to kill people if Al wasn't around to stop it? Isn't that kind of a bad artifact then? Like yeah it was advanced magic, but this is a school for nobles, where people using advanced magic like that shouldn't be too far from the norm.