> For the complete documentation index, see [llms.txt](https://betterfan.gitbook.io/languages/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://betterfan.gitbook.io/languages/game-fi-mechanism/fan-cards/fan-cards-level-and-upgrade.md).

# Fan Cards Level & Upgrade

Players can level up their Fan Cards by burning $BTB. Every level requires different amounts of $BTB and time. Some levels may require $BFF Tokens. Higher-level cards will have a higher-level card ratio. A fan Card maximum could be upgraded to level 30.

| Fan Card | Base Ratio | Per Level | Max Ratio |
| -------- | ---------- | --------- | --------- |
| Rookie   | 1          | 0.1       | 4         |
| Epic     | 2          | 0.15      | 6.5       |
| Champion | 4          | 0.2       | 10        |
| Legend   | 8          | 0.4       | 20        |


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