- Heroes Card: A Hero (Weapon) could be used when the user has at least 1 Hero (weapon) card. The card will have evolution (count by stars) and level. For example, the card of Rocker with 2 stars and level 19 will represent Rocker at level 19, evolution 2.
- Using Card to Evolve: A hero at one evolution / milestone will have a maximum level to upgrade. When users reach that milestone and need to upgrade more, players need to evolve the hero by collecting the required material cards with the same identity of that hero. For example, you need to use 3 more Rocker cards to evolve Rocker from 1 star to 2 stars.