Agruzgakbalat
Agruzgakbalat, sometimes entitled "the Ogskittersnagboloob" by his followers for reasons unknown, is the demon Lord of Madness. He is considered a phlegmatic-type demon of the Circle of Destruction, but he operates mostly independently, as even other demon lords fear and mistrust him, due to his maddening, chaotic, unknowable nature. His domain in the Underworld is Bedlam, which he rules from a twisted tower called Gnarrentürme. Strange and aloof, his designs and his actions seem as insane as the lunacy he inflicts upon his victims.
Appearanace
The physical form of Agruzgakbalat seems almost beyond comprehension. Our only image of him comes from the account of a mad monk who claimed to have seen him devour a group of warlocks who dared to call upon him. His description was little more than a rambling list of twisted body parts of men and beasts and nightmares, but an artist did his best to depict it - though the monk, stricken blind by the Demon Lord's glory - could not confirm its accuracy. A writhing mass of limbs, tentacles, snapping jaws, eyeballs on stalks, and dark shadows and shapes that defy mortal comprehension, Agruzgakbalat is a nightmare that is said to cause insanity in the viewer at a glance.
History
The origins of this Demon Lord remain shrouded in mystery. If he was ever worshipped as a god who fell from grace, such tales are long lost to time. Some stories whispered in the halls of the dark magi say that he was a simple denizen of the Underworld - a creature called the Oskittersnagboloob - that existed there before even the gods and demons came, and so feared was he that he became a Lord in his own right. If true, he would be one of the most ancient of all demons.
Personality
It is said that Agruzgakbalat, though considered part of the alliance called the Circle of Destruction, seldom interacts with the other Demon Lords of the Underworld. Warlocks and demon-worshippers in the mortal realm seldom call upon him, for to do so invites madness. However, it also invites great power - for to remain so independent in the land of demons, yet still so respected and feared, must require tremendous might. Those few mad warlocks who have called upon Agruzgakbalat say that his magic is wild and unpredictable, and his voice sounds more like a thousand voices in a cacophonic chorus of barely-restrained bickering and muttering. He seems to desire little more than to drive the whole world as mad as he, creating chaos throughout all the realms, so that all will worship him.
Domain
To Agruzgakbalat belong the souls of the truly insane: madmen whose dementia cannot be defined by one of the more precise domains of other demons. They are sent to dwell in his kingdom in the Underworld, Bedlam, which he rules from his twisted black tower, Gnarrentürme. A land of shifting geography and chaotic weather, Bedlam is considered unusually dangerous even by Underworld standards, and only the bravest denizens of that dark realm dare to venture there, for no one ever knows what they might find, or if anything they see there might even be real.
Followers
Agruzgakbalat's minions have forms as incomprehensible as their overlord’s. Sometimes called Ogskittersnagboloi, they behave like rabid beasts when provoked, but display some mad cunning, constantly emitting a dozen different voices from their many mouths - whispering, screaming, laughing - which make no sense, but drive the listener insane. Within Agruzgakbalat's realm of Bedlam also dwell many Maniae, spirits of madness who follow the goddess Lyssa.