Chronicles of Khaldun: Crux of Eternity
Tetposmeton is a devil and crime lord, running a gambling den in the Shattered Temple District in Sigil. If you need something, he can get it for you.
You know. For the right price.
Tetposmeton allied more closely with the Shields of the Sorrowfell when they declared war on the Khan of Nightmares, as the Khan apparently holds a valuable prisoner: Tetposmeton’s superior officer, the pit fiend Akinshata. (He also allied with the Solstice King, as the fey lord would see the Khan’s umbral blot destroyed, a goal relevant to Tetposmeton’s plans.)
Image retrieved from https://forgottenrealms.fandom.com/wiki/Amnizu on October 7, 2019.