THE 4th STAR - Make Nonheroes Relevant again
You could spend countless hours planning, brain storming, strategizing, and programming... Trying to find a way to bring nonheroes back from near extinction.
Ooooor... You could add a fourth star to challenge missions.
* - No Heroes Used
Don't change a single other thing.
Heroes are better, we know.
Reward people who find a way to win without them.
(Simple easy fix, maybe with a better solution down the road)