[@BCTheEntity]: Okay um... can say using Samurai Jack for an appearance is really unfitting, for one thing. ^^;

Secondly, um... for this setting, an evil-slaying sword doesn't really make sense because evil is entirely a concept, not a tangible thing like in some settings? It's too nebulous of a qualifier. Besides, all weapons are already capable of killing people, but they just don't under school rules.

[@Ryougu]: Any battle operating fully under school rules renders lethality impossible, no matter what you do it won't kill.

You could set separate win conditions other then "opponent cannot fight any longer" though.