What are stars?
Stars are a reflection of a hero's power.
Increase a hero's star rank to make them more powerful.
How do I upgrade my hero's star ranking?
Collect Hero Tokens.
Once you collect enough tokens to upgrade your hero:
- From the town, tap the Heroes button.
- Tap the hero whose star ranking you wish to upgrade.
- Tap the Profile tab.
- Tap the Upgrade button.