A: Defina Mystery Box features 28 different heroes, each with unique background stories and skills, belonging to one of four factions; Prometheus' Fire, Ouroboros, Thoth's Book or Athena's Aegis. Heroes are randomly generated, with different rarity, attributes, skills and elements. The hero levels in descending class and rarity order are: SSS, SS, S and A. To start playing the Defina game, you will need at least four different heroes to form a team. When a Defina Mystery Box is opened using a small amount of BNB, this box is burned to create a Defina Hero NFT.