Yonoir

Yonoir is a primarily black Pokémon that somewhat resembles a cyclops. Its cylindrical head is light gray with a single eye that has a yellow iris and a red pupil. Its eyelid resembles a smiling mouth, with its red eye being a tongue. There is a yellow band near the top of its head, and a short, yellow antenna with a disc-shaped tip extends from on top. Six flat projections extend from the base of its neck and surround its head, resembling an upturned collar. Yonoir has well-developed arms with two yellow bands near its wrists and large, gray hands. On the front of its torso are two almond-shaped markings, and on its back are two circular markings. Both sets of markings resemble eyes. A yellow band encircles its body, zigzagging along the front and forming a long curve around the back. It has a wispy tail in place of feet.

The antenna on Yonoir's head allows it to receive transmissions from the spirit world, which tell it to bring people there. It is unknown if Yonoir has a will of its own, or if it is forced to follow the bidding of the transmissions it receives.

(Source: Bulbapedia)