Yoastal

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

History
Yoastal was a priestess in the yuan-ti temple inside the Slitherswamp level. In 1491 DR, the nagas of the Ssethian Scourges slaughtered the yuan-ti and Yoastal among them. However, she rose again as a ghost hunting the former temple.

Activities
As ghost, Yoastal haunted the temple. She tried to pose as a priest of Mask and direct adventurers to attack the nagas with the secret objective to escalate the war between the nagas and the newly arrived bullywugs.

Appearances

 * Waterdeep: Dungeon of the Mad Mage