# Dynamic NFT contracts

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We are using RMRK NFT Building Block System as they are developing numerous ERC standards:

**5773** - Add multiple displayed outputs such as extra media files to the NFT (Multi-Asset)

**6059** - Place NFTs inside another NFT (Nestable)

**6220** - Equip other NFTs with your NFT (Composable)

**6454** - Bind an NFT to a user or another NFT (Soulbound)

**6381** - React with on-chain emojis to any NFT (Emotable).

The RMRK contracts allow us to ensure our NFTs are truly dynamic in a decentralized fashion. They evolve on-chain, and we make sure the changes are seen in real time across platforms such as Opensea.



Potentials are customizable, and in theory, they can have multiple versions (e.g. 3D & 2D), add music, experiences, and much more.

Every avatar comes with fixed parts that can't be changed (reflecting gender, species, etc) and with slots for changeable parts.&#x20;

At launch, every avatar receives Potential-bound traits which will be auto-equipped.



The different levels of the dynamics are:

**Equippables:** These are items that can be acquired and sold separately (as a part of the Potentials: Equippables collection on Base) or equipped onto a Potential and sold with it. They are based on the least personal experiences.

**Potential-bound traits:** These are traits that cannot be sold separately but can be added onto a Potential and sold with it. They are based on more personal experiences but from the Dischordian Saga so the new holder can continue the story with the past experiences.

**Address-bound traits:** These are traits that can only be held by the address that got them. That address can add the traits onto a Potential while they hold one, but they are removed upon listing so they can’t sell it with their Potential or as a separate item. They are based on the most personal experiences that can't be bought, such as making a charitable donation or being a top Discord member.
