Nessus, detailed in many older D&D works, is the grim, barren home of Asmodeus. Each layer of hell has an archdevil ruler, which are (from Avernus to Nessus) Zariel, Dispater, Mammon, Belial and ...
Explore the Nine Hells in D&D for a perilous adventure, where each layer offers ... it just looks like Hell. With bursting ...