> For the complete documentation index, see [llms.txt](https://sailwars-1.gitbook.io/sailwars-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sailwars-1.gitbook.io/sailwars-whitepaper/game-elements/nft.md).

# NFT

* Hero Cards 

Use SWT to exchange for diamonds, and use diamonds to draw Hero Cards. Two identical Hero Cards can be combined to create a higher-star card. Hero Cards can be traded on the NFT marketplace or in the in-game marketplace.

* Ship Cards 

Use SWT to exchange for diamonds, and use diamonds to draw blueprints. Use corresponding materials to craft ships. Ships can be upgraded using materials obtained from PvE and PvP battles. Materials can be traded on the NFT marketplace.

* Equipment Cards 

Equipment cards cannot be directly drawn but can be crafted using materials obtained from PvE, PvP, and GvG battles. They can be traded on the NFT marketplace.