Players now can use Hero Upgrade card to get extra bonus
How to get Hero Upgrade Card?
Decompose hero in purple quality and above will receive Hero Upgrade Card
When recruit purple or above quality hero in tavern, players can click decompose button to decompose hero and get Hero Upgrade Card.
Enter Hero Forge panel
Upgrade hero with Hero Upgrade Card and decompose recruited hero here
Cannot decompose hero when:
1. with units on hero
2. with gears equipped
3. Saved formation in class arena
Cannot transfer attributes from hero upgrade by sacrifice by now