Vell had golden eyes, which was uncommon for tieflings.
He was charming and manipulative and had a hand in many of the goings-on in Neverwinter. He was also described as the "arrogance incarnated" because of his behaviour.
Vell was the leader of one of the Ashmadai cells operating out of Neverwinter, but his interpretations about Asmodeus' tenets and edits were rather liberal. Vell saw his service to the god of the Nine Hells as a means to an end rather than a serving a master.
Around 1479 DR, Vell began to change the agenda of the Ashmadai of Neverwinter to take control over the city instead of following the tenets of Asmodeus or to follow the Ashmadai's agreement with the Thayans. Vell readily encouraged his followers to mark shellacked buildings and corpses with the symbol of Asmodeus. This was to intimidate others into joining the ranks of the Ashmadai. The symbol was effective as it managed to scare the townsfolk into co-operating with the demands of the Ashmadai.
Under Vell's orders, the Ashmadai also began to turn New Neverwinter's people to their cause — controlling most of the mercenaries guarding the Wall and wooing a handful of Dagult Neverember's close retainers. The Ashmadai's effort to seduce Neverember's allies went all the way to the top, with Mordai Vell personally pursuing General Sabine. Ultimately, Vell hoped to induct Neverember himself to the cult.
In 1479 DR, Vell convinced an Ashmadai cultist, Elden Vargas, to send his insane wife, Karis, to Helm's Hold for treatment. However, Vell then called in favors with the Prophet Rohini to prevent Vargas from seeing his wife. Turning on Vell, Vargas began to go by the alias of the "Tormentor" and began to mind control citizens and brand them with the symbol of Asmodeus, so as to implicate Vell's Ashmadai. Vell was able to turn this situation to his favor by aiding a group of adventurers to deal with Vargas.
Around 1484 DR, Vell discovered the Waterclock Guild's Crypts, and in there the means to release and control the primordial Maegera the Inferno, who was sealed in Gauntlgrym. Vell wanted to use Maegera's energy to create a powerful magical scepter that would give him the authority to dissolve the Ashmadai's agreement with Thay and would also give him the authority to command all Ashmadai cells in Faerûn. Discovering Vell's intentions, Lord Neverember sent a group of adventurers to deal with Vell once and for all. The adventurers arrived in time to stop the ritual and killed Vell and his minions, ending the primordial threat to Neverwinter and dealing a crippling blow to Ashmadai activity in the region.
- ↑ His invasion to Gauntlgrym must have happened after the events of Storm over Neverwinter, that took place around the time the Darkening was cast.
- ↑ Matt Sernett, Erik Scott de Bie, Ari Marmell (2011). Neverwinter Campaign Setting. (Wizards of the Coast), p. 101. ISBN 0-7869-5814-6.
- ↑ 2.0 2.1 2.2 2.3 Matt Sernett, Erik Scott de Bie, Ari Marmell (2011). Neverwinter Campaign Setting. (Wizards of the Coast), p. 100. ISBN 0-7869-5814-6.
- ↑ 3.0 3.1 Matt Sernett, Erik Scott de Bie, Ari Marmell (2011). Neverwinter Campaign Setting. (Wizards of the Coast), p. 155. ISBN 0-7869-5814-6.
- ↑ 4.0 4.1 Matt Sernett, Erik Scott de Bie, Ari Marmell (2011). Neverwinter Campaign Setting. (Wizards of the Coast), pp. 98–99. ISBN 0-7869-5814-6.
- ↑ Erik Scott de Bie (April 2013). Storm over Neverwinter. (Wizards of the Coast), p. 5.
- ↑ Erik Scott de Bie (April 2013). Storm over Neverwinter. (Wizards of the Coast), pp. 5–37.
- ↑ Greg Bilsland, Mike Mearls (2011). Forge of the Dawn Titan. (Wizards of the Coast), pp. 3–11.