Schemes of the Lich King
The hezrou, a disgusting toadish looking demon, dwells in the vast Abyssal swamps, mires, and waterways, equally at home on land and in the water. The presence of a hezrou has an obvious effect on the nearby flora and water, causing plant life to twist and knurl and infusing water with a foul odor and brackish taste—signs much easier to spot on the Material Plane than the Abyss. Long exposure to this corruption can cause vile transformations and hideous deformities. Often, entire backwater communities of deformed mutants owe their twisted countenances not as much to incest and poor breeding as they do to a hezrou’s proximity. They are disgusting creatures with a constant air of foul stench and disturbing clouds of filth that accompany them. The noxious vapors and foul fluids that constantly weep and seethe from a hezrou’s body are particularly heinous to those the creature grapples.
Ultimately, they serve the Diabolist as all evil outsiders do.
Although quite intelligent, a hezrou can fairly be said to waste its intellect. They prefer the simple pleasures—slumber, the thrill of torture, the bliss of feasting on a living meal, or the joy of feeling something beautiful breaking and crumbling in a clenched fist. They do not often seek to build empires or lead cults—although few hezrous would turn away prospective minions who came to serve the demon on their own.
These monstrous and bestial creatures form from the souls of evil mortals who poisoned themselves, their kin, or their surroundings, such as drug addicts, assassins, and alchemists who cared not how their experiments polluted the environment.