Nupperibo

Nupperibos were a type of devil. To be precise, they were the literal bottom of the infernal hierarchy.

Description
They were strange, bloated creatures whose eyes were sewn shut as were their mouths. Every nupperibo was deaf. However, it could discern the existence of creatures within 30 feet (9 meters) by scent. One way to "blind" a nupperibo was to confront it with an outrageous smell.

Nupperibos were genderless creatures. They also never ate or drank anything.

The method through which a devil was demoted to a nupperibo was to carve its flesh, sew its eyes and mouth, seal the ears with lead, fill the body with corruption, and then remove the brain. The process, as done by an excruciarchm left the devil with practically no hint about its former form and the nupperibo was complete. As mentioned before, there was practically no hint about its former form. A nupperibo that was born from demotion always had some signs that might give aother person idea about its former identity like some unique scar patterns.

Personality
Nupperibos had barely anything that could count as having a personality. They lacked all sorts of ingenuity to develop anything that resembled combat strategy on their own and even when somebody directed them, all they could do was to try to overwhelm with their numbers. They were merely almost completely mindless, but still lawful evil. This personality trait showed itself in their unquestioning obedience towards their superiors and their cruelty towards their enemies.

They followed the telepathic orders of any devil.

Combat
Nupperibos generally fought with their claws, but were sometimes given simple weapons like clubs. When more than ten nupperibos ganged up on the same opponent, they generated an effect that was similar to cause fear against the one they were ganging up on. However, such behavior was only displayed on order from a superior devil. However, they were surrounded by a fear-inducing aura that could similar effects at all times.

Killing them was very hard. They had a continuous regeneration ability that was slow to heal wounds but very strong. Even when burnt down to ash, a nupperibo's regeneration ability brought it back to full health if given enough time. There were two ways to deal with this ability. First, this ability had the peculiarity to work only while the nupperibo was on one of the Lower planes, meaning if the nupperibo was brought away from there, it could be permanently killed. Second, the nupperibo's regenerative abilities did not work on wounds inflicted to them by holy things like a holy weapons or holy water.

Nupperibos were relentless warriors who never lost their fighting morale and were completely immune against any effects that tampered with their minds.

A nupperibo's role in the infernal military was canon fodder, distractions, rear guard during a retreat, cushions to absorb attacks, and forces to occupy enemies. A nupperibo was never the protagonist in a military campaign.

Society
Nupperibos were at the literal bottom of the infernal hierarchy. A nupperibo was on a purely technical level a creature that stood higher than a lemure. However, a nupperibo was a dead end for baatezu promotion, it was not possible to rise higher in the hierarchy. To rise higher than that station, a nupperibo needed to first be demoted to lemure-status to have any chance to rise high in the hierarchy. A devil was demoted to nupperibo-status only on some failure towards its superior. It was common belief among devils that demotion to a nupperibo was a tool to clarify how important the failed mission was. Sometimes, a failed devil was turned into a nupperibo, but kept around because the superior devil saw some value in the nupperibo's original form's capacities. In such cases, a nupperibo was returned to its former station when it was opportune. From time to time, this led a devil to kidnap a nupperibo from its rival, to restore the nupperibo to its former station, and then gain information and/or an ally. Asmodeus was rumored to send formerly-important-devil-nupperibos as servants to mortals to enjoy the activities of other devils.

Nupperibos were the target of abuse at the hands of other devils who outranked them. They were the menial labor force of Baator.

A usual group of nupperibos was one consisting of four to eight called a mob. This number was chosen, because it would force any opponent to divert some time and maybe even magical power to get rid of them. Giant mobs of thousands of nupperibos were organized when fighting the Blood War. When a nupperibo was found alone, it was most likely a survivor of the nupperibo-mob it was part of, or an enforcer or guard gifted to a low-class mortal servant of a devil. This was something of a joke among devils, as they found the idea of a diminished devil serving a weak mortal funny.

A mob for war consisting of nupperibos was overseen by osyluths. They were armed and put into the front line. They often died and it was very rare for a nupperibo to rise in rank.

History
Nupperibos were counted among the baatezu and the baatezu claimed that they were part of their race. This was a lie, the race of the nupperibos, or to be more precise what the nupperibos eventually matured into, existed on Baator for a longer time than the baatezu did. Whatever they were, when the baatezu came to Baator, this race disappeared.

Being the original denizens of Baator, nupperibos naturally grew from larvae that were left alone and were expected to grow into mature specimen of their race if given time. However, the baatezu, who claimed that they were the first denizens of Baator, perpetuated a lie that the nupperibos were members of their race and turned them into lemures to build them artificially into their hierarchy. The truth that the nupperibos were not baatezu was leaked by the yugoloths at some point during the 14 century DR.

When a devil died outside of Baator, it most often became a nupperibo in Baator. Devils often made arrangements with their subordinates to find them by leaving detailed descriptions of their nupperibo-form and restore them to their former position. This method had a number of problems. Distinguishing one nupperibo from the horde was difficult even for devils and from time to time, it happened that a devil intentionally disobeyed the order. However, having the chance to work one's way up from nupperibo-status was viewed as more preferable than dying by the devils.