Change Shape (Su): A bauh-yin can assume the shape of any feline creature of Diminutive to Large size. In feline form, the bauh-yin loses its natural attacks but retains its special abilities. A bauh-yin can remain in its feline form until it chooses to assume a new one. A change in form cannot be dispelled, but a bauh-yin reverts to its natural form when killed. A true seeing spell or ability reveals its natural form.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.