CE Large Aberration Amphibious
Senses Perception +15; darkvision, tremorsense (imprecise) 30 feet
Languages Aklo, Common (or Undercommon, for underground variants)
Skills Athletics +17, Nature +13, Stealth +14, Survival +13
Str +6, Dex +3, Con +4, Int +0, Wis +2, Cha -1
AC 28; Fort +18, Ref +15, Will +12
HP 100; Immunities poison
Attack of Opportunity
Speed 30 feet; swim 25 feet
Melee claws +19 (reach 10 feet), Damage 2d8+9 bludgeoning plus Grab
Constrict 1d8+9 bludgeoning, DC 25 (grabbed by claws only)
Mandibles Requirement A creature is grabbed and paralyzed by the chuul's tentacles. Effect The creature takes 3d6 piercing damage.
Paralytic Venom (incapacitation, poison); Saving Throw DC 25 Fortitude; Maximum Duration 6 rounds; Stage 1 paralyzed (1 round).
Tentacle Transfer Requirement The chuul has a creature grabbed. Effect The chuul transfers the grabbed creature from its claws to its tentacles, or vice versa. A creature is exposed to the chuul's paralytic venom when transferred into the tentacles and at the start of each of the chuul's turns if it remains grabbed by the tentacles.
Also known as chu'ulothis, these large, armor-plated, crustacean predators lurk beneath the surface of pools, mires, and ponds, waiting to snatch up prey with their massive claws before paralyzing them with their tentacles. At that point, they begin to feed, eating their quarry alive.
Chuuls can live in fresh or saltwater, and indeed are found in aquatic environs the world over—even in subterranean oceans and lakes.
While chuuls are good swimmers, they prefer terrestrial prey. Their preferred method of hunting is by lunging out of the water, paralyzing their victims with their poison-coated tentacles, then gleefully dragging their twitching food into the water to drown if they cannot simply eat such morsels alive. Chuuls that dwell aboveground prefer to dine on lizardfolk, while those swimming in subterranean lakes readily eat anything but xulgaths, whose flavor and stink they find off-putting.
Chuuls are capable of speech and reason, but these creatures rarely speak with those outside their species except to taunt their food. Before it begins consuming its prey, a chuul often speaks in a gurgling, nearly incomprehensible dialect about how it will enjoy feasting on the creature's flesh. Perhaps chuuls believe that insults and degradation lead to more tender and tastier food, but the truth will likely never be known; almost all chuuls stubbornly refuse any meaningful conversation, even when imprisoned and compelled by treats or pain.
It is unknown if a chuul society exists beyond their frenzied mating season. Chuuls' intellects seem devoted only toward eating, causing psychological pain to sentient creatures, decorating their lairs with mementos of their favorite meals and victories, and breeding.
While chuuls are uninterested in money, gems, tools, or magic of any kind, they have a nearly compulsive need to collect trophies of their victories, perchance to savor the memories of the kill and the meat. What treasure they have are typically such mementos.