If you want you can help just let me know when you can start! I have been pretty busy lately, If you want to work on the arena part Ill let you know how I think it should be done and you can put ideas out there.
The balancing is going to be interesting but I think once "free killing" makes the spells if he is going to it will be a little easier.
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.
I'm on a page about incorrect corrections, and spent the better part of like two hours trying to get someone to understand that -5^2 = -25, not 25, and then that post had comments get reposted because that group is self sustaining, and that person was in turn trying to explain what I just explained to them. And I'm taking that as a victory