Kit is baby prism fox, a legendary and very rare magic animal that talks with musical sounds and is able to transforming into a crystal prism fox. Her prism coat acts like a jewel armor, protecting little Kit when she rides through the Wild Magic that she can enter anywhere through a swirling vortex portal. Her parents are Indigo and Spirit (named only in the script).
Kit was found alone by Tamara's parents Doc and Charity and brought to their Heartland Farm. Unfortunately, she is soon spirited away by the evil sorceress, Lady Kale, who imagines Kit as "great and powerful" creature to serve her as a steed and give her more magic. It turns out prism foxes are of the size of regular foxes, yet Kale takes her anyway, along with a lot of other magic animals. But then Jewel Riders come to rescue, breaking the charm that Kale placed on Kit, and she dumps the witch into the Wild Magic. Very soon after that, Kit is happily reunited with her parents.
Later, Kit is called by her friends and helps them defeat Kale in the season's finale. She arrives with some gliders so the Jewel Riders can enter the Wild Magic without the use of Travel Trees.