Azvalvigander

Zebubs serve as Hell's messengers and spies. Their ability to share what they've seen with other creatures makes them especially useful-not only to other devils, but also to mortal conjurers. Some infernal lords unleash them in enormous, horrid swarms upon unsuspecting lands to debase flesh and land alike while collecting secrets the infernal host might later put to use. Zebubs use any opportunity to manipulate weak-willed or easily tempted mortals into serving the zebubs' whims. While arrogant and deceitful, zebubs lack the cunning and confidence of most devils, and thus their schemes often focus on satisfying self-serving or self-destructive ambitions. Zebubs form from the souls of childish and craven mortals, reshaped by the archdevil Baalzebul in the frozen, filthy wastes of Hell's seventh layer, Cocytus.

Each type of devil plays a particular role in Hell's bureaucracies and hierarchies, though some have far more specialized functions than others.