> For the complete documentation index, see [llms.txt](https://caset-network.gitbook.io/caset-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://caset-network.gitbook.io/caset-network/untitled/optional-features.md).

# 💡 Optional Features

* Referral system for faucet claimers
* Rarity-based NFT staking multipliers
* NFT Leasing Protocol
* Token buyback + burn model
* NFT Evolution System (powered by on-chain AI)\ <br>