A Rhek resembles a large slug or maggot, its plump rubbery body covered in mucus and with no discernible front or back end. Until, that is, it spews highly-corrosive acid (50-foot range) from its mouth (which is little more than a small hole that is covered by a retractable flap of flesh) for self-defense. It normally does this as a ranged attack, but when surrounded it is able to leverage this talent to create a burst of acid on the ground and hurtle itself up to 60 feet away. Due to the acid burst, any creatures within a 5-foot radius are dealt 1d6 points of acid damage. The rhek is, of course, immune due to the mucus covering on its skin.