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

# Progress

Upgrading heroes is essential and brings great benefits to owners, including increased strength and a better win-rate.

### **Heroes' upgrading benefits:** 

Increase hero stats at each level 

Increased rewards per battle win ---> $CLAN tokens

### **Cost to Upgrade:**

Upgrading heroes requires experience points and $CLAN tokens.

NOTE: gCLAN price fluctuates with the floating $CLAN exchange rate.