Yoastal

Yoastal was a yuan-ti pureblood ghost in Undermountain in the early 1490s DR.

Activities
Yoastal haunted the yuan-ti temple. She tried to pose as a priest of Mask directing adventurers to attack the nagas with the secret objective to ecalate the war between the nagas and the newly arrived bullywug.

History
Yoastal was a priestess in the Yuan-ti temple inside the Slitherswamp level. In 1491 DR, the nagas of Ssethian Scourges slaughetered the yuan-ti and was killed also Yoastal. However she risen as a ghost wandering the former temple.

Appearances

 * Waterdeep: Dungeon of the Mad Mage