You can evolve heroes in Darwin Lab

★ Hero evolution

1. Only specific heroes can be evolved and evolution can increase the quality of hero.

2. Hero envolution require consuming specified heroes. 

3. Formula of evloution can be checked in hero chart.

4. The equipment worn by consumed heroes  will be automatically put into the bag.

5. Upgraded heroes will inherit the original hero's star, equipment and experience.

6. The star-up material and upgrade material consumed by consumed heroes will not be returned