I shouldn't talk about this or Tyler will find me (thumbs up to anyone who gets the reference) There should be a fight club game mode 2 teams from 1-5 knights. Equipment doesn't apply, you get fists to fight your opponent. Choose an attribute, health damage or speed, 1v1 (probably very suggested) while others watch. After a successful K.O. the winning team gains a point, whoever has more points at the end of the game wins.
This subforum is more for discussing the PvP games that are in the game already. The suggestions subforum will net you more ideas to build upon your base idea.
For example, in the game you suggest would there be a "blocking" mechanic (i.e., blocking attacks)? Could a brief charge attack break through that shield instantly? How about animations, would we make them be new animations or use existing one(such as the flourish stab for the first attack and maybe the brandish second hit as a punch being thrown)? Would the "attributes" choose different fighting styles? Speed could give 3 standard hits, while damage could give 2 hits, however heavy could block more damage and land heavier blows while speed could interrupt the powerful attacks.
Either post a new thread over in the suggestions or move this one over there. I'd love to see what other people come up with.