-maybe some bars like 5/10/15/20k damage on the health bar
ok

-ability to work in MP
it works, maybe some bugs, didn't tested much

-auto win when someone reaches max damage
i didn't find command for this

-ability for health bar to refill each turn(customizable ex: refills 10k each 100 frames..)
-ability to edit maximum damage
for these options script should be integrated ro some mod, i think

I think there's none ^^ And that's probably what the new "Trigger score" from 4.93 is... but we can't know for sure until we try, when the modmaker is fixed xD