Tier A · After a stable core
Heroes
Heroes are high-impact rolls, but chasing them before your economy and soldiers are stable can slow progression.
What is verified
The official game description confirms that heroes can be rolled; no public hero-by-hero stats were available at verification time.
Practical rule
Roll for heroes after routine income and wave clearing feel stable. Compare a hero in live play before committing scarce upgrade resources.
Next step
Use the upgrade planner with your live income rate, then compare this priority with the other entries in the full list.