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Monster · SRD 5.1

Octopus

Small beast, unaligned

Armor Class
12
Hit Points
3 (1d6)
Speed
swim 30 ft., 5 ft.
STR
4 (-3)
DEX
15 (+2)
CON
11 (+0)
INT
3 (-4)
WIS
10 (+0)
CHA
4 (-3)
Senses
darkvision 30 ft., passive perception 12
Challenge
0 (10 XP)

Traits

Hold Breath. While out of water, the octopus can hold its breath for 30 minutes.

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: +4 to hit, reach 5 ft., one target. Hit: 1 bludgeoning damage, and the target is grappled (escape DC 10). Until this grapple ends, the octopus can't use its tentacles on another target.

Ink Cloud. A 5-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.

Small beast, unaligned

Special Abilities

Hold Breath

While out of water, the octopus can hold its breath for 30 minutes.

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: +4 to hit, reach 5 ft., one target. Hit: 1 bludgeoning damage, and the target is grappled (escape DC 10). Until this grapple ends, the octopus can't use its tentacles on another target.

Ink Cloud

A 5-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.

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This work includes material taken from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC and available at https://dnd.wizards.com/resources/systems-reference-document. The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License available at https://creativecommons.org/licenses/by/4.0/legalcode.

Reformatted and reorganized for presentation on PostRoll; text unmodified.

Licensed under Creative Commons Attribution 4.0 International.

srd-5.1 · Version 1.0.0 · Updated Jul 9, 2026