Marketplace is the place for you to sell NFT Heroes, Equipments, Items and receive USDT.
Only Hero from A level can be sold, then the Hero is reset to Level 1 after being sold.
Only Equipment in Orange can be sold
Boxes can be purchased to summon Heroes, Box is classified: B,A,S,SS. After opening the box, Hero with level as the box can be received and as fortunately the higher level of Hero might be in.