Build your own epic heroYou can upgrade all the attributes of your heroes by entering the heroes screen and clicking the "Upgrade" button.At the beginning of the game, you will summon many heroes via summon scrolls. 

What is more important here is how to choose the "right" heroes to strengthen and thus upgrade the overall team strength as early as possible.The initial hero lineup here suggests 2 front row, 1 mage, 1 physical and 1 support. The choice of heroes can be diverse, based on the race of the hero and its skills to match, so as to play the strongest restraint effect on the enemy.On the other hand, as the heroes level up and the hero pool expands, you may find that previously upgraded and enhanced heroes are less effective in the later stages. 

The game has further optimized this point, you can continue to strengthen the heroes you want to upgrade later by resetting the heroes with the returned gold, experience, and stardust resources. All the resources will be fully utilized!