Dispater

Dispater is the foremost arms dealer of the Nine Hells, and perhaps the greatest weapons supplier in all the planes. As the lord of Dis, he oversees a mining and smelting operation that continually churns out weapons and armor. Using some of the great number of secret techniques Dispater has unearthed over his lifetime, the foundries of Dis produce deadly armaments that help to stem the abyssal tide. The fighting requires constant reinforcements, creating a voracious appetite for the products of the iron mines on Dis and the workshops in the sprawling metropolis that shares the name of the layer. Dispater trusts no one and dislikes surprises. Since Zariel’s rise to power, he has taken to dwelling in the libraries inside his iron palace. He employs a network of spies and informants to watch over anyone that might threaten him, a measure of his deep paranoia. Dispater has created an impenetrable suit of adamantine armor for himself, imbued with charms designed to foil spells and keep him safe in any environment, no matter how hostile. No one can guess at all of its features, since he crafted it using methods that only he has mastered.
Dispater’s paranoia affects everything he does. For example, he often dispatches orders and other missives by branding his message on the back of an imp. The imp wears a leather vest that conceals the message, and the laces of the vest are knitted into the imp’s heart. If the vest is removed by anyone other than the intended recipient, that act kills the imp and causes its body to disintegrate before the message can be read.
The lord of Dis measures everything in terms of the knowledge it contains and the secrets that can be gleaned from it. He yearns to solve every mystery of the cosmos, a quest that might seem foolhardy for anyone other than an immortal being. Any hint of a secret that remains hidden draws his attention, and a discovery that could tip the scales in his favor might be enough to entice him to act against his fellow Lords of the Nine.
Given his reclusive nature, gaining an audience with Dispater is difficult at best, with no guarantee that any correspondence truly reaches him.

The Greatest Game

Dispater’s trade in souls is concerned mainly with the acquisition of secrets. His imps scour the Material Plane in search of any lost lore that could help to turn a soul to Dispater’s service. Such a secret could be a lost spell sought by a mighty archmage, who pledges fealty to Dispater in return for the knowledge, or it could be the identity of a petitioner’s secret admirer. Dispater and his minions know that the perceived value of a secret is a highly subjective matter. A farmer has no use for an arcane spell that could incinerate a legion of warriors, but the promise of knowing which crops will sell best over the coming years might persuade him to enter into an infernal compact.
To Dispater, all of reality is a contest played out under secret rules. If he can discover the principles that define the true nature of the cosmos, he can learn how to ascend to the top of the Nine Hells’ hierarchy and then eventually the entire planar order. He covets the souls of those who seek secrets and those who have useful, secret information of their own that he can bargain for.

The cosmos is a grand game. He who knows its rules the best shall win the prize.

— Dispater

Ruler of the 2nd Layer of Hell - Dis

Aligned Organization

Lord's of the Nine