Haagenti

ripvanwormer's picture

Haagenti is the Abyssal+Lord of Alchemy. His Layer of the Abyss is catalogued as the 548th, known as Garavond. Zuggtmoy is sometimes seen cavorting in his palace.

Haagenti is also the name of an unrelated Vestige.

Sources: 
Fiendish Codex I: Hordes of the Abyss
Dragon #337
Book of Fiends: Armies of the Abyss
Planescape, Dungeons & Dragons, their logos, Wizards of the Coast, and the Wizards of the Coast logo are ©2008, Wizards of the Coast, a subsidiary of Hasbro Inc. and used with permission.