Tyranny of Dragons
Landgedrosa Cyanwrath's twin brother
Langdedrosa Cyanwrath was a half–blue dragon member of the reformed Cult of the Dragon of Severin. This is his twin brother made by the DM because Carl suprised him by killing Langdedrosa in the first episode because the he is OP and the DM is lacking in creativity.
His brother was one of the leaders in the assault on Greenest. Langdedrosa challenged the strongest of the defenders of the town to a duel, promising to spare the lives of Greenest’s people in exchange… and lost, even after the DM doubled his HP.
Later, Dangdedrosa was at the Cult’s camp near the city and was also killed by Carl’s character :P