Just a minor note to clarify for a few people who asked/were confused, the new "https://creativecommons.org/about/cclicenses/" rules apply to the intellectual property, that is to say, the likeness, concept, lore etc. and it's usage, whether in free fan-fiction, or commercial products; but it's also been suggested "https://creativecommons.org/about/cclicenses/" is probably the correct format and not CC BY-SA.

Importantly, the take away is that your own creations - assets, like artwork, 3D models, whether free or commercial in nature, are still your creations and do not have to be shared freely. If you make Avali related artwork, sell a model on gumroad, or make a avatar on VRChat, you're under no obligation to let other people redistribute or modify those if you don't want them too.

The attribution rules refer to the Avali as an intellectual property, and how people may create derivatives from it; whether that be in-canon artwork, an AU fan-fiction, or selling related assets.

Hope that clears some things up!