The Zoanthrope Base Class

From publisher blurb: The world is filled with creatures of all manner and shape. Savage, mystical, alien. Some malign, some benevolent. The struggle to survive as the civilized races settle and explore has them contesting with creatures of our own plane and those adjacent, for dominance, or just survival. The Zoanthrope are those who make their way through this uncertain world by fighting fire with fire, they perform rituals that infuse their spirits and mutate their bodies to match the power and ferocity of various creatures.