Each hero has 3 levels. Each level gives the hero new skill, increased Strength, and increased effect on previous skills. To evolve a hero, you'll need to gather the hero cards. The amount of cards needed to evolve is shown with the pieces slot on the card next to its Strength points.
Evolve Requirements[]
The cards can be obtained from playing matches or buying packs from the store
Level 1 -> Level 2 card need 3 Hero cards
Level 2 -> Level 3 card need 7 Hero cards
In total, you'll need 10 cards and 1 Hero card (for starter) = 11 cards to get to Level 3
See the Unlocking Heroes guide to find out how to get these hero cards
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Mythical Form[]
After a hero reaches level 3, he can be transformed to its mythical form. Mythical form is marked with gold card frame. Advantages of mythical heroes are:
Makes your hero looks intimidating to opponent
When your lvl 3 mythical hero pops out from the chest piece, its sell price becomes 500 crystal instead of 250 crystal
To transform the card, you'll need to pay 12,000 crystals and get 3 trophies. The trophy and the crystal payment can be accessed by clicking the hero icon and slide left to the last pink board. There are 3 kinds of trophies :
Kill Count Trophy: Kill 50 heroes with the card
Damage Trophy: surpass the damage limit of 2700. A few cards can surpass this limit independently, while most of the cards need to be buffed first. The damage limit may vary between heroes (for example: The Sachem has a limit of 2400 instead of 2700)
Accumulated Damage Trophy: Reach total accumulated damage inflicted to opponent (125,000 damage)
