Believed to be creations of the Four Horsemen, astraoloths live out their existence in search of souls to harvest. These deadly creatures are ravening planar predators, openly hunting throughout the void for souls on which to feed. These voracious creatures are the personifications of death resulting from negative energy or level drain. Their vile touch drains life force from their enemies, and even perishing near them sates their thirst for life and souls.
Astraoloths appear as ghostly, faintly phosphorescent, rail-thin humanoids with exaggeratedly long limbs. The fiends also have a seemingly random number of translucent tentacles trailing from their backs, shoulders, and upper arms, which wave and weave through the air.
Their bizarre forms possess heads that are skeletal, elongated, and vaguely piscine, reptilian, or canine, always bearing hungry rictus grins. Wicked, curved claws sprout from their hands and feet, and their tails move in rhythm with their tentacles, typically hanging toward the ground and almost doubling their length.
As the perpetually ravenous servitors of Abaddon’s yugoloths, the astraoloths’ touch is corruptive and damaging to the spiritual material of souls. Their touch and especially their bite can cause horrific damage, akin to that of a wraith, to anything they attack. Most feared, however, is their ability to utterly consume the souls of those killed in their proximity, feeding off of their essence or dragging it back to their fiendish overlords
Appearing blind at first glance, astraoloths have no visible eyes—what might have once been eye sockets are covered over by translucent hide. However, while any other creature might be considered crippled by such a deficiency, Abaddon’s soul-harvesters are unhampered by their condition. The fiends more than make up for lack of sight, sensing their environment through the constant movement of their tentacles—like the “vision” of many creatures who live in pitch darkness—and a supernatural awareness of souls.
Perhaps most disturbing, astraoloths exist in a uniquely translucent, semi-incorporeal state. This property also allows them to somehow transition between planes with ease, and they often use the ability to flee pursuit, especially after glutting themselves on stolen souls.
Astraoloths never speak and rarely use their telepathy to communicate with anything other than daemons.
Astraoloths are the artificial creations of more powerful daemons—the yugoloths, their greatest servitors, and a select number of non-aligned daemonic nobles. Though the gruesome and blasphemous details are restricted to the most powerful daemons, the process by which astraoloths form begins with the forced amalgamation and rendering down of dozens of mortal souls into a screaming, conscious slurry of quivering soul-stuff. Over days and weeks, the soul-mass experiences unimaginable tortures, until at the apex of its maddening experience its masters fuse it with the spirit of another daemon (always a sacrifice rather than a willing act, usually as a punishment). Once combined with this essence, ritual magic and their creators’ raw force of will then transmute the damned into their final twisted and blindly obedient form.