Skin changes – Nunu wearing dark clothes and Willump with brown fur.. Specific in-game changes:

• Model: New textures for Nunu and Willump..

Skin bio & introduction: – Here is a tale told by the softly falling rain, to a grove of trees. After helping the guardian of the Mossborn Forest free his paws from a hunter’s trap, a young boy is swept into adventure, like a pile of autumn leaves dancing on the wind…

How to get this skin? – The skin is not available for purchase and has been placed in the Legacy Vault (they can still be mystery gifted, and only appear in a champion’s information tab if owned). The vault is usually opened for limited runs and this skin can then be purchased in the Riot Store. In my experience it can be rather long between each opening of the Legacy Vault, hang tight!

Worth buying? – Sasquatch Nunu is a Legacy vault skin — rarely available and not in the regular store. You can preview any skin for free on the PBE server before buying. Learn how to access the PBE here.