# Power Gems Each NANO comes with a power gem which is randomly defined, either common or rare. The power gem can be used to invoke a superpower in the game. In each game, the power gem can be a different superpower with different effects. Each superpower will have a success probability. ### Power gem types * Herostone * Ethernite * Moonstone * Cryptonite * Diamond * Onyx * Sapphire * Ruby --- # 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://docs.metananos.com/game-metaverse/nanos/power-gems.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.