Malkizid

Malkizid is a powerful fallen solar and former archdevil who resides in the Blood Rift. He is also called "The Branded King", because of the constantly bleeding wound on his forehead given to him by Corellon Larethian.

History
Malkizid was a high solar in the service of the Seldarine. Around -30,000 DR, he was seduced into betraying Corellon by Araushnee (Lolth), but was cast into the Nine Hells and branded for his betrayal when Araushnee's rebellion failed. There he quickly rose in the hierarchy of the Hells and soon controlled his own dominion.

At some point, thousands of years ago, Malkizid earned the disfavor of Asmodeus and was then exiled from Nine Hells. A small host of devils followed Malkizid where he setup his infernal realm in the Blood Rift, the native plane of yugoloths. He is now a yugoloth lord and archdevil in exile, and therefore has baatezu and yugoloth minions.

In 1355 DR Malkizid made his way to Faerûn and set himself up as the hidden lord of the devils of Myth Drannor while plotting more schemes. In 1374 DR Malkizid was the secret instigator of the recent daemonfey attack on Evereska and their eventual conquest of Myth Drannor. At the end of the conflict he was narrowly defeated, but not destroyed, in battle by Araevin Teshurr.

Physical description
Malkizid appears as a nearly 10 foot tall humanoid with marble white skin, a pair of huge wings that shed shabby gray feathers, and a long serpentine tail. His hands and feet are gray with bird-like talons. Two black horns curl from the sides of his head, and a long mane of hair falls down his back. Malkizid's humanoid face could be considered handsome, except for the cold black pits that are his eyes and the large mark that has been branded on his forehead that trickles a seep of foul blood.

Personality
Malkizid is clever, hateful, and patient. He absolutely despises Lolth (and her Drow), whom he blames for his fall from grace thousands of years ago. He hates, but also fears, Corellon, because he thinks that Corellon could have shown him mercy, but instead kicked him out of Arvandor and into the Nine Hells.

Goals and motivations
Since both Lolth and Corellon are both beyond his power, he takes out his vengeance on their mortal followers. For thousands of years now, Malkizid, has subtly been the cause of many troubles for the elves of Faerun. Around -10900 DR he was secretly the patron of the Vyshaanti lords of Aryvandaar and taught them powerful magic. He also encouraged them to aggression against the other elven realms of the First Flowering. Later, he worked to capture the sun elves of Siluvanede in his plots. Eventually, Malkizid's greatest success came during the Weeping War. Three of his powerful nycaloth servants carried out his plan to destroy Myth Drannor.

It's speculated that Malkizid seeks to create divisions within the Drow by encouraging independent thought, and at the same time prompting the Drow into conflict with surface elves.

Also, Malkizid is possibly sponsoring individuals with the Eldreth Veluuthra and encouraging their wars against humans.