Amarok

Amarok is a being of unspeakable power, a demon-goddess from the primordial past she is the hidden power behind such items as the Huntsman's Axe and is also the original "Big Bad Wolf": in fact she is the inspiration (and matron) of all wolf-based demons/deities in both mythology and fiction.

She, like The Hatter, is considered a fallen Primordial One - making her one of the most powerful beings currently known in the Villains cosmology (unless specified in-story).