A Chuhl is a horrid-looking 8-foot long abomination that looks like a cross between a serpent, a crab, and an insect. It weighs 650 pounds and is not particularly fast in or out of the water. It prefers to lie in ambush in shallow waters where it can easily snatch prey to devour. It is an intelligent creature, able to speak Common, but enjoys the taste of other intelligent humanoid creatures the most.

A chuhl will wait in ambush submerged in murky waters, and attacks with surprise on a 1-4 on a d6. It will typically grab with its claws, then constrict, then pass the victim to its paralytic tentacles. Relying on its chitinous shell for protection, it will use its claws to devastating effect, drawing in two victims each round as it literally mows down opponents, snatching, constricting and leaving them to drop from paralysis or death in its wake to return after the fight and devour them. It favors dragging victims into the water when possible, drowning them via constriction and/or paralysis.

If a victim is successfully attacked by a claw, they must save vs. Death Ray or be grappled. On subsequent turns the chuhl may constrict a grappled victim. Alternatively, the chuhl may instead pass a grappled victim to its hideous tentacled maw, causing the victim to make a save vs. Paralysis or be paralyzed for 6 rounds. Once paralyzed (or constricted to death), the chuhl will drop the victim and then move on to the next target.