Linnet is a black (not shown) rainbow-maned unicorn who can change into her original human form when she wants to. Linnet's human form shows her with dark skin and rainbow hair and eyes. Skyler has a crush on her.
Then I saw heaven opened, and there was a white horse. Its rider is called Faithful and True, and He judges and makes war in righteousness. . . . And He has a name written on His robe and on His thigh: King of Kings and Lord of Lords (Revelation 19:11, 16).