Upgrading a card means raising a C, B, A, or S card to ★5 (maximum level) and then upgrading it to the next grade, creating a B, A, S, or R card.
[How to Upgrade Cards]
■ SUPERSTAR Series
Max Level by Grade: C★5, B★5, A★5, S★5
- Use two ★5 cards of the same member and grade
▷ Both cards must belong to the same group and member, and have the same grade.
▷ Both cards must be at maximum level (★5).
- Use Multi-Up Cards
▷ The number of required Multi-Upgrade Cards varies depending on the card grade.
※ If you attempt to use cards of a specific artist where one is a solo card and the other is a group card, they are considered different groups and cannot be used for upgrading.
■ SUPERSTAR WAKEONE
Max Level by Grade: C★5, B★5, A★5, S★5
- Use Upgrade Cards upon reaching max level
▷ The number of required Upgrade Cards varies depending on the card grade.
▷ Upgrade Cards can be obtained through attendance rewards and mission rewards.
■ SUPERSTAR THEBLACKLABEL
Max Level by Grade: C★10, B★20, A★30, S★40, R★50
- Use Star Coins upon reaching max level
▷ The number of required Star Coins varies depending on the card grade.
▷ Star Coins can be obtained through the Season Pass.
- Limit Break unlocks at R★50, allowing upgrade to Prism Card
▷ Upgrading requires Star Coins, and success is determined by probability.
▷ The higher the theme completion of the album the card belongs to, the higher the success rate.