Langdedrosa Cyanwrath

Langdedrosa Cyanwrath was a half-dragon and a traditionalist member of the Cult of the Dragon between the years of 1459 and 1495DR. He served as the bodyguard of Frulam Mondath, a high-ranking commander, during the reign of Severin Silrajin, but later turned on the cult due to differences in opinion over the cult's purpose. He initially clashed with the External Munitions Force, but with time they each earned the other's respect.

Attack on Greenest
Langdedrosa and Frulam led the cult raid on the small village of Greenest, as well as several other raids on small communities in the Greenfields region. Due to his code of honour, he specifically disallowed the mercenaries under his command from killing or harassing noncombatants. He captured the family of guardswoman Linan Swift and demanded to face a champion from among the ranks of Greenest's militia. Zedris volunteered, prompting Cyanwrath to release Swift's children as a show of good faith. The two dueled, but the battle-weary Zedris fell quickly to Cyanwrath's assault. True to his word, however, the half-dragon released Swift's husband and left Zedris alive, although with a cruel shoulder wound.

Aftermath
The EMF's reconnaissance mission against the Iron Dogs' camp, during which they rescued Leosin Erlanthar with the help of several deserting Dogs, prompted a full cult retreat to avoid retaliation from military reinforcements. Mondath, Cyanwrath and several other cult members remained behind to close business in the camp. The EMF attempted a full frontal assault against their cave hideout, but were easily repelled. They returned to Greenest, while the cult remnants left with their remaining treasure. Mondath and Cyanwrath split off from the main force, travelling under the guise of a father and daughter, with their precious cargo of black dragon eggs. While staying in the common room of an inn south of Baldur's Gate, the pair were recognised by Adrian Culver, who invoked his alleged nobility to prompt the sellsword patrons to assist in their capture. Culver's sister Becca seized the dragon eggs, while Mondath was restrained by a pair of Flaming Fist agents. Cyanwrath, under orders, slew several mercenaries and escaped with his life. He eventually made his way to Xonthal's Tower- a known stronghold of cult traditionalists. Severin had provided the tower's garrison with a fake Blue Dragon Mask to distract them while his plans continued. A fracture within the tower between Cyanwrath's traditionalists and several loyalists eventually drove him to turn against Severin, imploring the Council of Waterdeep for extradition in return for the Mask- which, at the time, he believed to be genuine.

Xonthal's Tower
The EMF were dispatched to recover their old foe and his valuable mask. They fought their way through the cultists and magical traps within the tower, eventually discovering a wounded Cyanwrath. They agreed to uphold their bargain, leaving the half-dragon alive and helping him to flee. Gappy used magic to return Cyanwrath to Waterdeep, mask in tow, while the EMF stayed behind and fought a rematch against Lennithon the Blue. Cyanwrath was prosecuted for his involvement in the cult by a war crimes tribunal, but it was ascertained (thanks in part to the EMF's testimony) that he had not intended to deceive the Council and that he acted with a level of honour in his dealings. As such, he was left alive, eventually taking up a role as a farmhand in Goldenfields after a brief stint in prison.