They should make a command that is /ma k which is /ma kills and then it shows how many kills u have made in the arena so far
On Hellblock, there is something to show how many mobs you've killed on the right-hand side of the screen. I think it's a great tool to give a sense of progress.
The system does exist on .net, but the leaderstats system has no scroll feature, so if the number is too big, it does not show. The fix is a client side showing for your individual score. If that can be done, then I support.
Somewhere in the MobArena config file: use-scoreboards: true This will make the GUI displaying waves, kills, players... I would like this addition. Support!