Mordenkainen’s Tome of Foes talks about “oinoloths,” e.g., “Oinoloths bring pestilence wherever they go.” But various (mostly older) sources, including the third-edition Manual of the Planes, refer to “the Oinoloth,” a singular individual, and even give the Oinoloth a name: Anthraxus, a highly apropos name for a lord of disease, though maybe not the most creative. (Also worth noting: The Oinoloth’s seat of power, the Wasting Tower of Khin-Oin, was situated originally in Hades, later in the Blood Rift, which begins in the Abyss and runs across the lower planes to the Nine Hells.)
Fifth-edition D&D seems to dispense with all that. The oinoloth’s listing in Mordenkainen’s refers to this fiend only in the plural and gives it a Challenge Rating of 12—exceeded by ultroloths’ CR 13. This hardly seems like the profile of an arch-ruler of yugoloths. Like the capital-M Minotaur, which D&D turned into a species of lowercase-m minotaurs, it appears that the capital-O Oinoloth has become a species of lowercase-o oinoloths—perhaps descendants of an earlier Oinoloth, although who’d want to produce offspring with an avatar of pestilence is a question probably best left unanswered.
The practical reason for considering this question is that if the oinoloth were a unique being, you’d only ever find one in any given combat encounter. But since fifth-edition oinoloths seem not to be unique, not only is it possible to run into multiple oinoloths at once, at very high levels of play it seems downright probable. Continue reading Yugoloth Tactics: Oinoloths