Each chernobue is a slippery, writhing mass of tentacles that end in a mouth each. It has a single huge hideous eye and a fanged maw for a belly. A chernobue is 13 feet long and weighs 500 pounds.
Chernobues infect other creatures with the Abyssal taint carried by them; this manifests as a thick, orange, semi-alive liquid poison that bursts out when cured, rendering the victim unconscious. They also radiate an aura of evil malaise against creatures of lawful or good alignments, and are capable of plane shifting to spread their filth to the multiverse. Creatures that succumb to a chernobue's horrific appearance become paralysed with disgust.