Maaril was a mage of Waterdeep who owned the Dragon Tower in the mid–14th century DR and possessed the Dragonstaff of Ahghairon, a powerful magic item that allowed any dragon who touched 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.