I like your idea to cap the amount of games to be played per season, but I would also add some more tactical decision making to it as well. This would ensure that bots will have a strategic disadvantage compared to human players. Bots would only gain the minimal achievable Reward for any given Team.
One example of human decision making would be as simple as just to "activate certain abilities" like heal when they are ready to use. This would also widen the spectrum on how to play Steemmonsters as well. Imagine you just could save up your "Heal" ability for the next move and it gets more powerful...something like that.
Thanks for opening the discussion this is very important for the future of Steemmonsters.