Add a feature where you go into and bet on battles.
What happens is you go into bet on battles and you get to see two teams of 4 random creatures that will fight each other controlled by the AI. You decide which team you think will win and can place bets in chunks of 100 coins up to 1000 coins. If you loose, you loose all your coins, but if you win you get double what you bet.
The team you chose will be the one you see as though you are controlling it and the other team will be on the opponent side. You watch the battle hoping and cheering for your team or spit nails because the AI made a bad move and lost.
This could be kind of a fun addition.