Sometimes called an ether serpent, a hypnalis resembles a snake the size of a python sporting a hood like that of a cobra with gray stripes. The creature's fangs carry a potent venom that is not only deadly, but can force creatures off the Ethereal Plane. While other denizens of the Ethereal Plane focus their attention on warring with each other, spying on others, or feeding on dreams, a hypnalis hunts those not native to its plane.