You can strengthen your heroes in Training Center
★ Hero upgrade:
1. Consuming other heroes can upgrade your hero's level.
2. Experience gained by consuming other heroes who have the same attributes will be increased by 25%.
3. Any equipment belonging to the consumed hero will automatically enter your bag.
4. Consuming irobots will result in receiving large amounts of experience.
5. Heroes in the Training room, tactics in the Arena and when on Tavern assignments can not be consumed.
★ Hero star level up:
1. Consuming star up materials can greatly enhance the hero's star level.
2. The hero will undergo a boost in their attributes and can unlock new talents after starring up.