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_These human-sized parasites resemble ghostly centipedes surrounded in erratic violet radiance. Their flesh is translucent and their jaws are crystalline—they are clearly creatures of strange planes indeed._ **Destiny Destroyers.** Fate eaters i...
_Mordant snares were created by war mages of ancient times. Each resembles an immense, dark gray, 11-armed starfish weighing eight tons, and yet a mordant snare is never obvious. Instead, it controls a few humanoids shuffling about aimlessly, thei...
_An asasonbosam is a hirsute hulk with bulging, bloodshot eyes, often perched high in a tree and ready to seize unwary passersby with talons like rusty hooks._ **Iron Hooks and Fangs.** They resemble hairy ogres from the waist up, but with muscu...
The cavern glitters with refracted light bouncing off thousands of crystals. A towering menhir of shimmering crystal dominates the center of the cavern._ Whether a rare evolution of silicate life or a wandering nomadic race from some alternate r...
A swarm of strange, faceless gray snakes flies through the air—wingless, as if through water. Their mouths are rasping irises of gnashing fangs, and the sides of each snake are lined with milky, unblinking eyes._ When enough serpents on the Astr...
A creature with three toothy beaks on long stocks, two on what seems to be the front of the aberration and one on the back. Many tentacles adorn the creatu
The orbus is only found among spacefaring beholders, lacking functional eye stalks and most of the intelligence of a regular beholder. They are the means b
Grippli are rare and isolated enough that they don't generally need to worry about mind flayers, but sometimes the illithids get in the mood for amphibian
The panopticon is a large, fleshy creature. It carries a large, four legged body, with flesh grown over the legs, with a metal skeleton beneath the legs. I
The obsession orb is a terrible being that resembles a misshapen sphere of black flesh, adorned with four arms that dangle at the creature's sides or cross
An eye of the deep is a water-breathing cousin to the beholder , and dwells only at great depths, floating slowly about, stalking prey. They have two crab-
While having no permanent appearance, the carrion is, in general, comprised primarily of biological material, including pulsating red flesh, eyes of variab
The roseheads are a strange sort of being that originates from the nightmares of adults, though the roseheads concern children. Supposedly, when an adult w
Pheromosa is known among the Ultra beasts for its unparalleled speed and agility. It can sometimes appear to be in two places at once. As it defeats it ene
A floormaster usually appears as a gigantic and disembodied humanoid hand of a jet black and slightly violet color, with sharpened nails. It crawls along t
Bloodbeasts are horrors birthed from forbidden rites—humanoids consumed and reconstituted into living aberrations of blood, hunger, and malice. They slip t
Argos hounds are large dog-like or lizard-like creatures that are occasionally found in the tunnels surrounding the lair of a beholder . In place of a norm
A four-armed, four-legged creature in the vague shape of a human—but seemingly made of fine spider silk—moves down a tree, slowly chanting the incantation of a spell in the pale light of the full moon._ **Made in Corrupt Forests.** Lunarchidnas ...
Large Aberration, CR 3. From Tome of Beasts 3.
Huge Aberration, CR 11. From Creature Codex.
A pile of red, gooey flesh slurps along the ground. The meat climbs upon itself, squishing as it creates a formidable, hungry wall._ Malleables are malevolent, formless piles of flesh that absorb psychic energy and grow smarter and stronger when...
Large Aberration, CR 4. From Tome of Beasts 3.
A hideous mass of coiling intestines undulates, ejecting thin, transparent spears of some resinous material from its many orifices. The creature makes a wet slithering sound as it moves unsettlingly through the air._ **Foulness in Motion.** The ...
Medium Aberration, CR 8. From Creature Codex.