Chuul Juggernaut

Amphibious. The chuul can breathe air and water.

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

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

Pincer. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) bludgeoning damage. The target is grappled (escape DC 16) if it is a Huge 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 17 Constitution saving throw or be poisoned for 1 minute. Until this poison ends, the target is paralyzed and takes 11 (2d10) poison damage at the start of each of its turns. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Telekinetic Pull. The chuul projects a powerful telekinetic force that grips and crushes a target within 120 feet. If the target is a Huge or smaller creature, it must succeed on a DC 13 Strength saving throw or it takes 16 (3d10) psychic damage and the chuul pulls the target up to 30 feet towards itself. It is restrained by the chuul's telekinetic grip until the start of the chuul's next turn or until the chuul is incapacitated.