# Level The BlackHole SBT does not have rarity differences. It consists of 10 different levels and an additional 3 bonus levels. The 10 levels can be upgraded by accumulating POSW and consuming $MetaX tokens, with a maximum upgrade level of 10. The 3 bonus levels can be obtained by holding the PlanetGenesis NFT, providing extra bonuses. These bonus levels acquired through holding the PlanetGenesis NFT can be directly added without the need for upgrading. For instance, if you possess a BlackHole SBT at level 4 and own a PlanetGenesis NFT, you will receive a bonus of 3 levels, resulting in your BlackHole SBT reaching level 7. This mechanism allows SBT holders to surpass the level 10 limit and reach level 13. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://metax-social.gitbook.io/metax-whitepaper-en/algorithm/nft-or-social-mining-ability/blackhole-sbt-builder/level.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.