> For the complete documentation index, see [llms.txt](https://qubit-5.gitbook.io/qubit-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://qubit-5.gitbook.io/qubit-whitepaper/assets-and-creation/skeleton-nfts.md).
# Skeleton NFTs
Their power and rarity shape the character you create, but their uniqueness comes from your imagination and choices during the creation process.
Skeleton NFTs are the foundation of every playable character in QUBIT. They’re not just collectibles—they’re the raw, class-bound blueprints from which all fighters are forged.
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The lifecycle of a Skeleton NFT can be broken down into two stages:
### Stage 1: Packed (mystery state)
Skeletons are initially acquired in the form of Skeleton Packs—mystery boxes that contain a single, randomly generated Skeleton.
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At this point:
* The contents (class and rarity) are hidden
* Players can choose to keep the pack sealed or open it to reveal what’s inside
* Packs are tradable on the marketplace as unopened collectibles
{% hint style="info" %}
Opening a pack is a one-time action. Once revealed, the Skeleton inside is permanently bound to your wallet.
{% endhint %}
### Stage 2: Revealed (Ready for Creation)
Once a pack is opened, the Skeleton NFT is revealed. Now you can:
* See its assigned class (e.g. Pyro, Frost, Arcane…)
* See its rarity tier, which affects base stats and long-term progression
* Use it as the base material to forge a Character NFT using the [QUBIT Creator Tool](/qubit-whitepaper/qubit-creator-tool.md)
At this stage, the Skeleton becomes a creative asset. You can either:
* Keep it and create+mint a unique character
* Sell or trade it on the [marketplace](/qubit-whitepaper/nft-trading-and-marketplace.md) as a revealed, un-forged Skeleton
{% hint style="warning" %}
Once a Skeleton is used to create+mint a character, it is consumed and cannot be reused. One Skeleton = One Character
{% endhint %}
