My mind is of course going to keep going to DH since it's what I'm running a lot of right now, and it has phrases like "collaborate at all times, especially during conflict" and "They’re the opponents of the adversaries you play, but you and the players are on the same side: the side invested in telling an amazing story together. When representing antagonists and challenges, your main job is to balance presenting credible threats with maintaining the trust of the players so that the collaborative process can succeed."
I dont think combat as sport is particularly concerned with that.
