Rule-of-Three

Rule of three is a Cambion informer working under Graz'zt over a number of planes.

Rule-of-Three is just about the most intelligent source on the Abyss available. He dwells on Azzagrat in the city of Zeltar or in the Outlands. He is allied with Graz’zt, and knows much about the Infernal Realms. When in Azzagrat, he stays in the back room of an inn called the Golden Opportunity. People searching for information from him can easily access it, for a three-pronged price, such as precious metals of three different types or three magic items. Anyone who slays him incurs the wrath of Graz’zt, for Rule-of-Three is the mastermind behind the plan for which he is named, a uniting of Tanar’ri, Yugoloth, and Baatzu to take over the upper planes.