Brave Souls is a Minecraft map for 1.12.
This map features 7 different Arenas where you can battle your friends.
Speaking of battle you can go to the settings and choose the settings you want, to change the typical PvP fighting.
You can play with an infinite amount of players (in theory).
There also is a built in tutorial on how to use the map.
So gather your friends and find out who's the best!