Grey beasts are much more violent than their living counterparts. They have supernatural strength. They can move (walk, run, swim, fly) even if their bones are broken, their flesh ripped, or their organs smashed, and they can repair themselves by consuming flesh. As they age, and eat, they gain new powers, such as paralyzing gaze, greyflame breath, corrupting claws/fangs/stings, phantasmal fazing, bonebreaking shrieking/howling/roaring, etc. They all cause unease in those who are near them.

Because of the great variations of animals, there are many variations in grey beasts.

Much like in the Raesian Dominion, in other Dominions, grey beasts serve as living animals would in living society. They gain special powers based on Dominion and animal-type. Other than the regular common animals (horses, dogs, cats, etc.), these are the most notable grey beasts by Dominion:

• Agikaani: scorpion, sparrow hawk, boar, cardinal, barnacle, besra, krait, crane, bison, butterfly, robin, tuatara, manatee, shark, whale, tick, scorpion, weevil, dhole, bonobo, sloth, anteater, ringtail, bison, chevrotain, toad, hadrosaur, spinosaur, emu, capercaillie, nene, bobolink, gnateater, dove, hameh, ahklut, red bobcat, Ciceran boar, kalariya, cirein-croin, thonne, lord bilby, slate tick, vasan, pallid agama, hooksting, true herd, fairwing, keythong, grand dole, papillon saphir, iridal painter, ringham hummingbird, and vyalam.
• Campionese: vole, magpie, ant, culpeo, loris, gopher, broxa, midnight's howler, gulon, alley cat queen, jamasamu, dun lizard, fidelis hound, shisa, dun beaver, parandrus, and dun ant.
• Dun: rat, scarab, vireo, limpkin, bristleworm, starling, starfish, quail, mouse, pigeon, gar, starfish, roach, carpet beetle, roundworm, bristleworm, donkey, ankylosaur, cobra, smew, nutcracker, sapsucker, shedu, caladrius, zhennaio, bunyip, dipsa, green wyvern, lavellan, cancer tick, wretched smew, baroom, wretched possum, lurker in the myre, giant bristleworm, and muckfly.
• Durosian: hornet, caique, wolverine, rail, pteradactyl, whipbird, lemur, swallow, beaver, elephant, owl, catfish, seal, wasp, earwig, colobus, naked mole rat, wombat, dunnart, elk, moose, sheep, giraffe, alligator, goose, mocking bird, linnet, canary, oriole, bluebird, raven, pigeon, echeneis, doomsday vulture, gustave, argopelter, Abaddon hornet, nidhogg, flightless besra, dire wolf, barghest, wasteland cat, wendigo, squonk, Nakatani wasp, taupe hive, shimmering goose, yale, amphisbaena, chapa, maha-pudma, simurgh, bearded tiger, jester's duck, and savanna laugher.
• Fellwood: variraraptor, peregrine, fly, cicada, caracara, thylacine, cockatiel, shrew, shrike, crocodile, bantam, rhinoceros, cricket, nightingale, thrush, mongoose, parrot, pirahna, mandarinfish, click beetle, civet, fox, serval, baboon, karkadann, frog, t. rex, rattlesnake, grackle, manakin, lark, lyrebird, blackbird, fernwren, chimbwe, Aeldian civet, bicorne, mimic spider, iku-turso, warg, cwn annwn, dread fox, cave bear, cheval mallet, anomalocaris, Arunelese wasp, kappa, amaranth cockatiel, amaranth scorpion, kongamato, mountain screamer, brilliant civet, kelele, shrill cicada, halftooth crocodile, alouette, sawahine, great swan, echinemon, cu sith, cait sith, and fey deer.
• Godless: Salt Sea ape.
• Kaanian: hookworm, cuckoo, olingo, stork, checkered beetle, vormel, grebe, yalungur, colo colo, partridge, guineafowl, yeth hound, amniodrinker, ahuizotl, yeren, blue mountain panther, lavender cockatoo, musimon, and older toad.
• Pandemonian: crab, oilbird, bat, loon, mamba, ruff, goat, martin, ant, leopard, trout, aphid, aardwolf, jackal, nutria, asp, cormorant, kagu, hoopoe, secretary bird, babbler, loon, blue falcon, chickcharney, many-eyed fish, red wyvern, ahool, salawa, Pandemonian fox, orang bati, genn gganc, giant mamba, keelut, fell hound, opinicus, Kearin goat, aatxe, myrmecoleon, royal bee, paladuri, tanuki, pard, seven-footed rabbit, and lantern cricket.
• Qhanuum: lunveld, ototsiqi, ro'tuuriq, shqix, void mantis, snapper, mantis, currasow, turtle, hummingbird, snail, raven, toad, cat, caracal, capybara, marmot, cassowary, takahe, grouse, jacana, bluejay, merlin, shqix, ro'tuuriq, iqixiquon, snapper, voidcrawler, null spider, giant tortoise, blue tiger, royal frog, shen, mana ant, nguruvilu, gunni, wolpertinger, sorcerer silverfish, Axeti riverlord, bubastian, hsigo, and milsama trunfusef.
• Sangarian: locust, vulture, bee, turkey, apatosaur, honeyguide, cinnamon bird, bake-kujira, scoured vulture, cactus cat, yamata-no-orochi, kting voar, one-winged locust, ebu gogo, mapinguari, and twelve queens bee.
• Srisian: spider, crow, tanager, teratorn, pythorn, serpent, tamarin, swan, squirrel, heron, angler, squid, tick, shield bug, king cobra, feathered serpent, peacock, garuda, raven mocker, night wolf, black dog, black widow, peryton, terrible monster, angel swan, golden serpent, white horse, golden hind, and rainbow egret.
• Wapek: muskox, petrel, lion, hawk, clownfish, char, sandworm, hyrax, snow leopard, reindeer, camel, nectridea, pamola, sandgrouse, kestrel, snowfinch, griffin, trunko, winter wolf, snow lion, hoary puma, yeck, Altic beetle, yatagarasu, gold swan, leon del sol, sun rabbit, sandwalker, golden beetle, and dawn hive bee.