Mimic

Thought to be the result of a failed experiment meant to animate furniture or possibly a sinister alghollthu creation, mimics are clever monsters that can take the form of common manufactured objects. While rumored to prefer to be doors, any object that another creature will eventually interact with is an acceptable form to take. Mimics are ambush predators and voracious eaters, surprising their prey through their uncanny ability to imitate the form of ordinary furniture and other common miscellany. They remain disguised until unsuspecting adventurers happen by, then they lash out in ambush.

Mimics possess complex alien minds, and while often cruel and self-serving, they also enjoy conversation with their prey from time to time. For unknown reasons, they're especially interested in humanoids, and tales tell of the occasional mimic who has even formed a partnership with them for larger, shared goals. Mimics have a strong dislike for others of their kind and tend to live alone. Mimics can remain in their alternate form for an extremely long period of time, sometimes remaining disguised in a dungeon chamber for decades. Regardless of how long they wait, mimics remain vigilant and alert, ever ready to ensnare an unsuspecting victim.