Nomod_Cal

I don't really know if a bow would work. When Kaladin was wielding Syl as a shield/spear/sword she was one connected piece. Maybe she could shape into a javelin of sorts but not a bow. To the former I would say because the form of a sword is they're natural form a weapon that is delicate and dangerous in the right hands.

I don't really think that Szeth really find himself to be evil but he believes that those who he served used him to do their own evil. Though he does obviously believe the things they had him do were wrong. He swore to serve the one who carries his oath stone and did what he did justifying it to himself because of his oath. I even believe his internal conflict regarding most of his kills when he wishes for someone to be better then him shows a piece of him wanting the avenge those he killed by dying himself. Overall making it seem that he doesn't really find what he's doing evil in its own right but the people he serves are that much more abominable.