Fun but short
Like a endless mode for sure.
Maybe different starting decks or ability to unlock new cards and stuff to make own starting decks.
Way larger token number stacks as had almost 3000 Shield guys to point it pushed the rest off the screen.
Maybe some in run progression like trophys and card upgrades, the limited hand size seemed to really cut potential for some strategies with high income.
The end screen would need a lot of changes as it dint even show most of my town.
Town would probably need some changes to be able to show a ever increasing number of buildings or to make some buildings merge to become a hybrid or something like that.