Huge beast, unaligned

Armor Class 17 (natural armor)

Hit Points 76 (8d12+24)

Speed 20 ft., swim 30 ft.

STR DEX CON INT WIS CHA
19 (+4) 8 (-1) 16 (+3) 3 (-4) 11 (0) 3 (-4)

Skills Stealth +2

Senses blindsight 30 ft.

Languages –

Challenge 5 (1,800 XP)

Amphibious. The crab can breathe air and water.

Shell Camouflage. While the crab remains motionless with it’s eyestalks and pincers tucked close to it’s body, it resembles a natural formation or a pile of detritus. A creature within 30 feet of it can discren its true nature with a successful DC 15 intelligence (Nature) check.

Actions

Multiattack. The aboleth makes three tentacle attacks.

Claw. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 20 (3d10+4) bludgeoning damage, and the target is grappled (escape DC 15). The crab has two claws, each of which can grapple only one target