Werewyvern

A werewyvern was a humanoid that could shapechange into a wyvern.

History
Werewyverns seemed to be incredibly rare in the Realms. In Cormyr, it was said by many locals that a brigand werewyvern, known as Black Shaernauba, would rob travellers. If the travellers tried to fight back, she would assume the form of a wyvern, and fly away with the goods. The werewyvern was said to live in a cave full of riches, and kept attractive men as captives. She was also said to have slain Purple Dragons who tried to make a base near her home, as well as others setting up establishments.

Circa 1369 DR, a werewyvern by the name of Ekim Cyre, along with a green dragon, protected the Bhaalspawn, Abazigal, from invaders.

Notable werewyverns

 * Black Shaernauba, a rumored werewyvern in Cormyr.
 * Ekim Cyre, a werewyvern that dwelt in the lair of Abazigal.

Appearances

 * Video games
 * Baldur's Gate II: Throne of Bhaal