Giant Octopus

Large, beast, unaligned

CR 1AC 11HP 52 (8d10)

Speed swim 60 ft, walk 10 ft

str: 17; (+3)
dex: 13; (+1)
con: 13; (+1)
int: 4; (-3)
wis: 10; (+0)
cha: 4; (-3)

Skills stealth +5, perception +4

Senses darkvision: 60 ft., passive_perception: 14

Traits

Hold Breath. While out of water, the octopus can hold its breath for 1 hour.

Underwater Camouflage. The octopus has advantage on Dexterity (Stealth) checks made while underwater.

Water Breathing. The octopus can breathe only underwater.

Actions

Tentacles. Melee Weapon Attack: +5 to hit, reach 15 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage. If the target is a creature, it is grappled (escape DC 16). Until this grapple ends, the target is restrained, and the octopus can't use its tentacles on another target.

Ink Cloud. A 20-foot-radius cloud of ink extends all around the octopus if it is underwater. The area is heavily obscured for 1 minute, although a significant current can disperse the ink. After releasing the ink, the octopus can use the Dash action as a bonus action.