Maaril

Known chiefly as the mage who owned the Dragon Tower in the 14th century DR, Maaril possessed the Dragonstaff of Ahghairon, a powerful magic item that allows any dragon who touches it to avoid the negative effects of Waterdeep's dragonward. As owner of the Dragonstaff, Maaril was able to control which dragons entered Waterdeep, a power he used to his advantage

History
Maaril was fostered at the House of Wonder when it was a temple of Mystra. Once he became powerful enough, he summoned a demon to kill his mentor and framed a rival apprentice for the murder. He stole the Dragonstaff from his master and took over her tower. He lived in Waterdeep as an eccentric mage until he disappeared after the Spellplague.

Appearance
Maaril was handsome with dark eyes and liked to wear dark green or purple robes. He wore a pointy black beard.