Orcus, also known as the Demon Prince of Undeath was a demon lord and purported primordial that served as master of the undead from the depths of the Abyss. He was the multiverse's staunchest advocate for stagnation, seeking to exterminate all life, to darken and desolate all worlds, until all that remained in his static reality were undead moved only by his will.
By the start of the second era, Orcus achieved some form of actual divinity. However, this made him susceptible to the effects of Azbaan. Orcus' sloth and carelessness made him vulnerable within his abyssal palace, and he was slain by Omegus, the new god of undeath, in 2E020. Omegus then took over rulership of Orcus' layer of the Abyss and reshaped it in his own image. Omegus decreed that Orcus' name be erased from all recorded existence, and his wand hidden away. However, some say that Orcus can never truly be killed, and that he shall be restored one day and reclaim both his wand and his divinity from Omegus.
Orcus was the very picture of demonic, an imposing figure of vaguely humanoid form standing some 15 ft to 20 ft tall. His frame was immense, a twisted fusion of corpulence, muscle and rot-bloated flesh. His physique was marked by bestial features: the horned, desiccated head of a ram, thick-furred legs and cloven hooves of a goat, massive, black wings of a bat, a great maw filled with tusks, and a long, thick, constantly moving tail, poison-tipped and covered in spines.
Worship of Orcus was spread across numerous isolated cults that operated independently of one another. They operated within the shadows of society, often congregating in locales linked to the dead, including graveyards and secluded tombs. After his death, most cultists of Orcus switched to worship Omegus or other demon lords. A select few of his worshipers still prayed to Orcus, and plot to restore the demon prince to this day.