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Large monstrosity, unaligned

Armor Class 16 (natural armor)
Hit Points 85 (10d10 + 30)
Speed 20 ft., swim 50 ft.

18 (+4) 15 (+2) 16 (+3) 7 (-2) 14 (+2) 3 (-4)

Skills Perception +4, Stealth +4
Damage Immunities poison
Condition Immunities charmed, paralyzed, poisoned
Senses darkvision 60 ft., passive Perception 14
Challenge 4 (1,100 XP)


  • Hold Breath. While out of water, the coroctopus can hold its breath for 2 hours.
  • Underwater Coral Camouflage. The coroctopus has advantage on Dexterity (Stealth) checks made while underwater or anywhere near coral or rocks.
  • Water Breathing. The coroctopus can breathe only underwater.


  • Multiattack. The coroctopus makes two attacks with its tentacles.
  • Coral Tentacles. Melee Weapon Attack: +6 to hit, reach 15 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage. If the target is a creature, it is grappled (escape DC 17). Until this grapple ends, the target is restrained, and the coroctopus can’t use its tentacles on another target.


A school of brightly colored fish swims past a coral reef. Unexpectedly, part of the reef moves. Hiding there is a strange creature known as the coroctopus. It is an octopus that has formed out of coral.

Rock Solid. The main reason this creature is so difficult to deal with is its hard body. The coroctopus’ coral exterior provides ample protection against most attacks from predators.

Coral Camouflage. The ability to hide underwater makes the coroctopus a deadly enemy. It is not uncommon for one of these monsters to seem to vanish underwater. They are quite skilled at camouflaging themselves.

Fishermen’s Friend. Local fishermen can actually benefit from the presence of this monster. It doesn’t usually attack them and the coroctopus scares fish, crabs, and other creatures into the open.

Section 15: Copyright Notice

Monsters of the Wilderness: A Collection of Monsters for 5th Edition Copyright 2022 Cawood Publishing Author Andrew Cawood

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