Ras Nsi
Ras Nsi leads the yuan-ti of Omu on a divine mission to usher forth Dendar the Night Serpent and trigger the end of the world. His version of the apocalypse is not imminent, since Ras Nsi is distracted with fears of his own mortality. He has fallen victim to the death curse and is growing weaker by the day, and neither he nor his yuan-ti priests have been able to ascertain the cause or find a remedy. As Ras Nsi's power wanes, his rivals are preparing to dispose of him and continue their holy mission.