Tyranthraxus

Tyranthraxus, also called the Possessing Spirit and the Flamed One, was a malign entity who stole control over the bodies of others to further its wicked goals. He was said to have been one of the Seven Lost Gods forced long ago to bow before Bane.

History
The oldest legends of Tyranthraxus were those of the ogres (once known as the beast-men) of Thar. Long ago, it was said Tyranthraxus was a powerful general who lead "the Riders out of the Waste." In this form, he conquered the ancient kingdoms of Barze, Horreb, and Vane. While temporarily bodiless, he was imprisoned by one Baron Schodt in a vial of shining water which sank beneath the depths of Lake Longreach. The Kingdom of Barze was overrun by Tyranthraxus and his Twisted Ones in -356 DR. Some say the Dark Three had a hand in setting Tyranthraxus against their former allies in Barze. At some point (possibly before the conquest of Barze), Bane (and likely his comrades Bhaal and Myrkul) apparently encountered Tyranthraxus during their quest for immortality and forced the Flamed One into servitude. Circa 1240 DR, agents of Tyranthraxus convinced the bronze dragon Srossar to bathe in the Pool of Radiance, convincing him it would grant him greater wisdom and understanding of the multiverse. Instead, it allowed Tyranthraxus to possess his body. Combining his own powers with the immense powers of his host, Tyranthraxus raised an army of orcs, hobgoblins, and similar creatures and stormed into Phlan. For 50 years, however, the barrier formed by the Moonsea and the forces of Zhentil Keep kept him from expanding any further. Then he was caught by surprise when Phlan began to be recolonized by humans. In 1340 DR, Tyranthraxus' rule over Phlan was challenged by the adventurers Shal Bal, Ren o' the Blade, and Tarl Desanea. When it looked like he would be destroyed, Tyranthraxus entered a different body and dove into the Pool, using its magic to teleport away. Since then, the Possessing Spirit settled in Myth Drannor. Around 1368 DR, it was rumored he was seeking out more of Phalse's duplicates of Alias.

Physical description
Tyranthraxus took the body of whoever he was possessing and avoided changing its appearance too much in order to avoid suspicion.

Abilites
The Possessing Spirit could cause his stolen body to erupt in a fiery aura. He could read all thoughts within his line of sight and accurately mimic the voice, gestures, and posture of the one whose body he was inhabiting. If not in a body, he was able to sustain himself within any magical liquid, though it is not known how long he could last outside such a medium.

Personality
He was cruel, ruthless, and intelligent. Tyranthraxus wishes to rule over all the Realms.

Relationships
Tyranthraxus's enemies included Shal Bal, Ren o' the Blade, and Tarl Desanea. He was the most powerful member of the New Alliance.