Cador is virtually unknown dwarven deity of revenge and hatred, not truly part of the Morndinsamman, but also acting as a dark reflection of the pantheon as a whole. He only shows up in a single 1st Edition adventure, Nigel Findley’s “Caermor” from Dungeon #2 (and reprinted in 2nd Edition’s Dungeon anthology release, “Dungeons of Despair”). I expanded upon the slight details there to make Cador a full-fledged deity.
Diirinka is the treacherous and cruel patron of the degenerate dwarves known as derro. Exiled from the Morndinsamman for his crimes against his brother and mortal dwarves, he hides in Pandemonium, paranoid that his enemies, especially the illithid god Ilsensine, will find and destroy him. Diirinka is interesting because he doesn’t have a traditional priesthood, and has special wizard-like characters called Savants instead. I took this opportunity to “formalize” the Savants into a type of Specialty Priest, but without priest spell access; I tried to match the basic and somewhat randomized way the savants operate in the Derro Monstrous Compendium entry.