Fellandar Fellandar was a once - human man magically transformed into a cat - like being , who sought the destruction of Waterdeep . History . The lover and partner of Aviss , Fellandar lived in Waterdeep in the mid – 10th century DR . However , the pair came to despise the city and sought its destruction , and turned traitor against it . At some point , they went into the Mere of Dead Men , far to the north of the city . There they met with troll s , survivors of the earlier Trollwars waged against Waterdeep . The trolls believed the traitors could bring them victory in a third , and final , Trollwar , and promised them power over the city . Aviss and Fellandar chose to give up their humanity and swore a bond between them . As the trolls watched on , Aviss and Fellandar entered a certain pool where the fell magic of the Mere transformed them into inhuman creatures of raw and primal power . Empowered , the pair led a new troll army out of the Mere and south toward Waterdeep in the Year of the Thundering Horde , 963 DR . They knew well the city ' s defenses , and Castle Waterdeep had only just begun construction a month before . However , the great mage Ahghairon and a band of wizard s met them and hurled Aviss and Fellandar into a sunless extra - dimensional prison , thwarting the troll ' s attack . For long ages , Aviss and Fellandar struggled against the door of their prison , seeking a mystic nexus point by which they might break out . Such a point was eventually to be found within the Selûne ' s Smile tavern in Waterdeep . One evening on the hottest day of summer in the Year of the Prince , 1357 DR , Vajra Valmeyjar and Timoth Eyesbright arm - wrestled in the Smile . Little did they know that , in the skies above , the constellation s of the Woman Warrior and the Centaur were in alignment , giving power to their contest . This power merged with magic sweltering in the heat , widening the point into a rift and thence a door to the extra - dimensional prison , releasing Aviss and Fellandar at last . Resuming their wish to destroy Waterdeep , they wreaked a path of destruction through the city , killing and maiming folk , destroying buildings , and overturning carts . They were bewildered by the changes to the city , and shocked to realize how long it had been . They were pursued and fought all the way by adventurers Kyriani Agrivar and Onyx the Invincible . Nevertheless , the spell that imprisoned them drew them back toward the Smile , where Vajra and Timoth still arm - wrestled to keep the rift open at Khelben Arunsun ' s urging . Finally , Luna dazzled the pair with moonlight and Khelben used a " telekinesis " spell to hurl the villains back in , last seen begging against it . Personality . Fellandar was cruel and merciless , though he loved Aviss dearly . He called himself an outcast , a savage , and a mage killer . He said he preferred his meat raw . Description . Fellandar was a muscular , cat - like man , covered in blueish - gray fur with blue hair tied back in a ponytail . He had feline facial features and sharp fangs . He wore baggy maroon pants with golden cuffs , necklace , and rings in his ears . He spoke in an archaic form . Powers . Fellandar was also granted a potent magical resistance .