most our saying that duel is not suited for cooperation theme of eorzea, but cant you understand that duel is different from killing. my idea of a duel is a friendly matched or training that aims to lessen the hp to 1 and not zero. if you dont want a duel in the friendly zone areas, then that can be solved to an arena or training gorund of some sort. stop making issues that it can ruin the story because with the proper design it will never will.