Udaak

Udaaks were monstrous creatures who crossed over to the Material Plane from the Abyss during the Age of Demons. Because of their great size, strength, and destructive nature, they were sometimes used as living siege engines.

Description
Udaaks were at home is cold climates and, over the millennia, never strayed far from where they first entered the world, in the untamed north of Xaspen and Gorathan. Resembling great demonic apes, Udaaks were unnaturally huge, four-armed beasts covered in shaggy black hair. Their four, red eyes were accustomed to darkness, allowing the Udaak to hunt at night, as well as day. An Udaak's mouth was full of sharp teeth, two of which were great tusks that protruded from its mouth. As they were not naturally occurring creatures, Udaaks were, mercifully, quite rare.

History
Since their introduction during the Age of Demons, Udaaks became the Apex Predators of the northern forests in which they dwelled.

In 1356, Gorathanian agents managed to successfully capture an Udaak, although the monster escaped before it could be put to use.