Combat Related Gameroles

I would love to have combat related gameroles to change in my world. The command could be: /gamerole combat cooldown-(1.9)/ spam-(1.8)/ odd-(1.7)/ hold-(combat test) *or something like that. That will change the attack it self, the animations, sword blocking (1.7 to 1.8) and the sheild (1.9 to combat test).

If this command will only change the attacking and not every change there should be a natrual healing command too: /gamerole natrual_healing saturation-(1.8)/ quick saturation-(1.9)/ hunger-(combat test)/ disable-(minecraft alpha) *or something like that. That will change the natrual healling of the game from saturation to hunger and maybe even disable hunger that way you would just need to eat food to heal instently.

I would really love if you would add thoose featers in the game. This will be a fun/challenging gamerole to have.