Diinkarazan

Diinkarazan was a lost demigod of the derro and twin brother of their main deity, Diirinka. Known as The Mad God, he was trapped in the Abyss and tormented by nightmarish visions as punishment for both his and his brother's crime.

Description
Diinkarazan appeared as a gaunt, derro, making him tall by that race's standards. He had a staring, insane face, the most notable feature of which being his black-pupiled, glowing red eyes. Gusts of wind constantly swirled around his presence and his hair was always streaming out behind him whilst changing color, texture, and straightness at random.

Personality
Diinkarazan spent the vast majority of his time trapped in a tortured state of perpetual, raving insanity. On the rare days he was reprieved of this condition, a sane Diinkarazan was no less of a homicidal maniac than before, his lucidity doing little to stem his murderous intent. The vengeful deity was abandoned by his own kin and felt betrayed by his people, and so desired the destruction of the derro.

However, just because he was insane didn't mean he couldn't feel fear; drowning (whether in water or lava), certain horrible monsters and the illithid deity Ilsensine were among his worst fears.

Powers
Physically, Diinkarazan's avatar wasn't particularly strong; though it was a capable rogue, it carried no weapons, fighting in melee using its bare hands. What truly make Diinkarazan dangerous was his power as a wild mage, although unfortunately for him, he essentially had zero control over it. Though he knew evocation, and abjuration spells of the highest order, Diinkarazan's actual power was always in a state of dramatic flux, going anywhere between the incredible arcana of a master spellcaster to the feeble magic of a rookie from minute to minute at complete random.

Similarly, Diirinkazan's other abilities weren't so much activated as they were triggered. Attempts to detect the thoughts of The Mad God universally ended in insanity, and there was an about one in four chance that any spell cast on him that he couldn't resist would be reflected back to the caster, whether he wanted it to or not. He could employ a variety of spell-like effects by employing the wind around him, including whispering wind, feather fall, gust of wind, wind wall, wind blast or stinking cloud, but he had no control over which ability manifested and each was just as likely to occur as another.

Divine Realm
Despite technically being an Abyssal lord, Diinkarazan's realm in the Abyss, the 586 layer, was not his domain as much as it was his prison, hence its moniker. The complex curse keeping him there could only be broken by a greater god, although once every fifty years, give or take 1-10 more, he became sane for a day.

The Prison of the Mad God consisted of a perpetually swirling vortex of air, gas, and rings of flying rocks, at the center of which was a stone throne Diinkarazan was bound to where he was tormented with images of things he feared. The distance between places in the realm was constantly distorted by 10-80% on a minute-by-minute basis, and the entire layer was also dimensionally unstable. The realm was being torn between Carceri and Pandemonium by it's imprisoning and maddening qualities, the balance between the two elements keeping it from slipping into one or the other and keeping it in the Abyss.

Activities
Diinkarazan was mostly bound and tortured on his throne and killed visitors to his realm. Every fifty years or so, he became sane for one day and sent his avatar to the Prime Material Plane. Once there, he tried to satisfy his revenge by killing everyone he came across until the avatar got killed too.

Relationships
Diinkarazan was betrayed by his twin brother, Diirinka. He was the son of Moradin and the brother of Dumathoin, Abbathor, Laduguer, Thard Harr, Gorm Gulthyn, Marthammor Duin, and Dugmaren Brightmantle. Like his twin brother, he was completely banished from the Morndinsamman by Moradin.

Diinkarazan was an enemy of the entire Dark Seldarine, though the origins of this enmity weren't known. He had been cursed by Ilsensine to be tortured in the Abyss.

Worshipers
Before his fall, Diinkarazan was the patron of the city of Korolnor.

History
Diinkarazan was among the oldest of the dwarven gods. He was the patron of Korolnor, one of Deep Shanatar's kingdoms. The faith was abandoned after the Spawn Wars.

At some point in history, Diinkarazan and his brother Diirinka came up with the idea of creating their own dwarven subrace to increase their power, one that was dexterous and adept at magic&mdash;traits not possessed by other dwarves&mdash;and started to explore the Underdark for the means. They found a cavern full of raw elemental energy and artifacts, which they tried to take but were then discovered by Ilsensine. Diirinka backstabbed his twin and fled with the magic while Diinkarazan was captured and imprisoned by the mind flayer deity. Since then, his activity consisted solely of sending his avatar to the Material Plane on a killing spree.

Diinkarazan could channel parts of his powers through the Throne of the Mad God, the old throne of the monarchs of Korolnor, and direct trolls of Stommheim to fight for surface territory and Underdark territory against the mind flayers of Oryndoll. Derros were drawn to his worship and since the Time of Troubles his power was again on the rise.