Blair

Blair is a powerful being who appears as a black cat wearing a curly witch's hat and with a curled up tail. She seems to know Zev. Blair has been shown using exceptionally powerful "Pumpkin Magic", which she used to kill the Shattered Mirror Universe's Miserix, although she admitted herself it would have been much more difficult had he not been previously weakened by a seal placed on him.

Apparently, Blair answers to a being known as "Shinigami". Nothing is known about him.