DM here, I've just used some Sulatar Drow antagonists in Titan's Folly on Lammania. They were looking for some lost secrets and artifacts about Elemental Binding and Magebreeding. They used the facilities to create flame-themed creatures. One such creation is the Salamander, which is basically a Sulatar version of the Drider/Scorrow. The dungeon facility's original purpose was to create weapons against the Dal Quor Invasion. My PCs have an interest in the Dreaming Dark and Magebreeding. The Ashbound and a Vadalis Heir were also present in this adventure.