"Nilshais are a race of bizarre and malevolent alien sorcerers. Nilshais spend much of their time on the Ethereal Plane. A nilshai is a horrid-looking creature with three clawed legs, a ropy body, and three long, whiplike tentacles that divide at the end into stubby, strong fingers. Its head is a bulbous case atop its trunk, crowned by three stalked eyes. Its three membranous wings fold tightly against its torso when not in use. Its hide is a slick, mottled blue and black color, soft and slimy to the touch, but its flesh is iron-hard beneath its skin."