Dark Young

Dark Young are demonic creatures appearing in the manga Overlord and it's anime adaptation. Summoned through the spell "Iä Shub-Niggurath," these nightmarish creatures were extremely popular in the virtual world of YGGDRASIL, before the game shut down. In the New World that Ainz finds himself trapped in following the shut-down, they have only been seen once, during the massacre of the Re-Estize Kingdom's army on the Katze Plains. During this massacre, five Dark Young killed a total of 180,000 soldiers, 70,000 of which came simply from the summoning ritual to bring them into the world. The Dark Young are heavily inspired by the works of H. P. Lovecraft, particularly the Outer God Shub-Niggurath's children.

Appearance
Approximately ten meters tall and horrifying to look at, the Dark Young are pitch-black monstrosities, seemingly made of ropy tentacles and with drooling mouths covering their bodies. They have been described as having muscles like iron, covered by a tough, rubbery hide. Five goat-like hoofed legs sprout from beneath their body. Despite looking some kind of eldritch horror, the Dark Young sound no different to the common goat, bleating like such creatures even as they crush any who stand before the one who summoned them.

Abilities

 * Strength - Due to their immense size, the Dark Young are far stronger than the average human. It is possible that some of this strength comes from their "mother," though if this is true, such strength wouldn't matter except against something of roughly similar size.
 * Intelligence - The Dark Young are said to be highly intelligent. However, no evidence exists to prove this claim, as the only time they have been seen in action, they were used as what could essentially be considered as mindless tools of destruction.
 * Fear and Insanity Aura - The Dark Young radiate an aura of palpable dread, that they are capable of causing an army to rout before they've even reached their lines.
 * Resilient - The Dark Young's hide is nigh-inpenetrable. During the battle of Katze Plains, Gazef Stronoff struck one of these creatures with the enchanted sword Razor Edge. This blade is capable of bypassing any defence, natural or magical, yet did nothing to slow the Dark Young down.
 * Speed - Despite appearances, the Dark Young are at least capable of outpacing a trained warhorse.