This lobster-like creature has a thick armored shell. A pair of tiny eyes gleams above a mouth full of writhing tentacles.
AC 22, touch 12, flat-footed 19 (+3 Dex, +10 natural, –1 size)
Str 25, Dex 16, Con 18, Int 10, Wis 14, Cha 5
A chuul can transfer a grappled victim from a claw to its tentacles as a move action. The tentacles grapple with the same strength as the claw but deal no damage, instead exuding a paralytic secretion. Anyone held in the tentacles must succeed on a DC 19 Fortitude save each round on the chuul's turn or be paralyzed for 6 rounds. The save DC is Constitution-based. While held in the tentacles, paralyzed or not, a victim automatically takes 1d8+7 points of damage each round from the creature's mandibles.