> For the complete documentation index, see [llms.txt](https://pegalon.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://pegalon.gitbook.io/whitepaper/the-game/equipment-and-upgrading/cards-and-parts.md).
# Cards and Parts
## Cards
The primary function of cards is to enhance your Pega Skills. Each card possesses its own rarity and can be utilized within the corresponding Pega rarity tier. For instance, if your Pega rarity is 'Founding,' you may utilize cards of the same 'Founding' rarity.
## Parts
If you want to increase your Pega level, you need parts. Each part has its own rarity and can be used with the same Pega rarity. For example, if your Pega rarity is 'Founding,' you can use parts that are also 'Founding'.
