There are 3 things I think could be automated in ARENA.
- Ask for help for every single hero
- Select team
- Fight.
You could add buttons in the interface that allow you to automate these actions. To fight, I want to enable / disable autofight as for the history mission.
For the other two points, I would add two buttons that will allow you to ask for help for all the heroes in the recharge and one / two buttons that will make you select the next team according to the rating you just used (higher or lower). What do you think?