I was thinking, what if you could customize:
-How much gold/crystal you start with
-Max population
-How long until overtime starts
-If there is a center tower or not
OR
What if you could customize games against AI?
For example the stuff above, while also being able to change:
-The AI's deck
-Strategy patterns (Like Aggressive or Defensive for a base idea)
-If it's an ambush mode or a normal mode with a statue.
Just a base idea to have more things to do!
