The Mordesh were once an elegant, blossoming civilization on the verge of joining the Dominion because of their great achievements in alchemy. However, when Victor Lazarin's Everlife Elixir turned into the raving infection known as the Contagion, the Dominion turned on the Mordesh and trapped them on their planet with a quarantine blockade. The survivors sought the aid of the rebel humans and, with their help, successfully smuggled many operatives and civilians out from Grismara. On Nexus they continue to serve as the eyes and ears of the Exiles, unleashing their dark and deadly arts upon the Dominion even as they scour Nexus for a cure to save their remaining brethren on Grismara.