Nalfeshnees hail from the Woeful Escarand, the Abyss’s four hundredth layer. There, the greatest and eldest of them rule as the Lords of Woe. Having exhausted their kingdom of its resources, nalfeshnees turn hungry eyes toward other layers. They bargain with demon lords, offering guard services in exchange for slaves, materials, treasure, and the choicest victuals harvested from across the planes.
Nalfeshnees divide creatures into three groups:
The first, and their favorite, is "fit to eat." This group includes animals, most humanoids (particularly halflings), and lesser demons. A nalfeshnee won’t bother negotiating with any creature it wants to eat. Sometimes a nalfeshnee takes humanoids prisoner, adding them to its pantry for later consumption. Nalfeshnees prefer the taste of terrified creatures.
The next group is "fit to use." This group contains creatures nalfeshnees can’t stomach, including insects, spiders, gnomes, immortals, certain other demons, powerful humanoids, and elemental creatures.
The last group is "fit to serve." This distinction is reserved for creatures far more powerful than nalfeshnees. It includes demon lords, primordials, balors, and powerful elementals such as efreets. When a nalfeshnee is serving another creature, its gloating, malicious nature melts away, revealing a whining wretch that bows and wheedles at every opportunity.