Chuul

Large aberration, chaotic evil

Armor Class 16 (natural armor)

Hit Points 93 (11d10+33)

Speed 30ft., swim 30ft.

Skills Perception +4

Damage Immunities poison

Condition Immunities poisoned

Senses darkvision 60ft., passive Perception 14

Languages understands Deep Speech but can't speak

Challenge 4 (1,100 XP)

Traits

Amphibious

The chuul can breathe air and water.

Sense Magic

The chuul senses magic within 120ft of it at will. This trait otherwise works like the detect magic spell but isn't itself magical.

Actions

Multiattack

The chuul makes two pincer attacks. If the chuul is grappling a creature, the chuul can also use its tentacles once.

Pincer

Melee Weapon Attack: +6 to hit, reach 10ft., one target.
Hit: 11 (2d6+4) bludgeoning damage. The target is grappled (escape DC 14) if it is a Large or smaller creature and the chuul doesn't have two other creatures grappled.

Tentacles

One creature grappled by the chuul must succeed on a DC 13 Constitution saving throw or be poisoned for 1 minute. Until this poison ends, the target is paralyzed. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.