Sea Devil Prince

Huge fiend (devil), chaotic evil

Armor Class 16 (natural armor)
Hit Points 207 (18d12 + 90)
Speed 20 ft., swim 60 ft.

STR	DEX	CON	INT	WIS	CHA
24 (+7)	13 (+1)	20 (+5)	19 (+4)	15 (+2)	17 (+3)

Saving Throws Str +12, Dex +6, Con +10, Int +9, Wis +7
Damage Immunities bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities frightened, paralyzed
Skills Perception +7, Stealth +6
Senses darkvision 120 ft., passive Perception 17
Languages Aquan
Challenge 16 (15,000 XP)

SPECIAL TRAITS

• Hold Breath. While out of water, the sea devil can hold its breath for 1 hour.
• Pack Tactics. A sea devil has advantage on attack rolls against a creature if at least one of the sea devil’s allies is within 5 feet of the creature and the ally isn’t incapacitated.
• Underwater Camouflage. The sea devil has advantage on Dexterity (Stealth) checks made while underwater.
• Water Breathing. The sea devil can breathe only underwater.

ACTIONS

• Multiattack. The sea devil prince makes two tentacle attacks, each of which it can replace with one use of Fling.
• Tentacle. Melee Weapon Attack: +12 to hit, reach 20 ft., one target. Hit: 17 (3d6 + 7) bludgeoning damage, and the target is grappled (escape DC 20). Until the grapple ends, the target is restrained. The sea devil prince has ten tentacles, each of which can grapple one target.
• Fling. One Medium or smaller object held or creature grappled by the sea devil prince is thrown up to 40 feet in a random direction and forced prone. If a thrown target strikes a solid surface, the target takes 3 (1d6) bludgeoning damage for every 10 feet it was thrown. If the target is thrown at another creature, that creature must succeed on a DC 13 Dexterity saving throw or take the same damage and be forced prone.
• Bite. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 20 (3d8 + 7) piercing damage. If the target is a Medium or smaller creature grappled by the sea devil prince, that creature is swallowed and the grapple ends. While swallowed, the creature is blinded and restrained, it has total cover against attacks and other effects outside the sea devil prince, and it takes 21 (6d6) acid damage at the start of each of the sea devil prince’s turns. One Medium or two smaller creatures can be swallowed at the same time. If the sea devil prince takes 35 damage or more on a single turn from a creature inside it, the sea devil prince must succeed on a DC 23 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in spaces within 10 feet of the sea devil prince. If the sea devil prince dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 10 feet of movement, exiting prone.
• Ink Cloud (Recharges after a Short or Long Rest). A 60- foot-radius cloud of ink extends all around the sea devil 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 sea devil can use the Dash action as a bonus action.
• Horrible Laughter (Recharge 6). The sea devil laughs horribly in a 120-foot radius. Each creature in that area that isn’t deafened must succeed on a DC 10 Wisdom saving throw or be frightened until the end of the sea devil’s next turn. While a creature is frightened in this way, its speed is halved, and it is incapacitated. A target that successfully saves is immune to the Horrible Laughter of all sea devils for the next 24 hours.

ABOUT

This creature looks like an octopus, only much larger and of a bright scarlet color, striped with black.

Sea devils are aptly named; they are not the smaller creatures that sometimes rise to the surface, go near the shore, or are caught by fisherman. The deep sea devils are monsters who inhabit caves in the rugged, mountainous regions of the ocean. They are evil spirits who delight in injuring all who meet them.

Ink Sacs. They carry big sacks in front of them, where they conceal the ink. Whenever they choose, the sea devils press out this ink, and it colors the water for a great space around them.

Devil’s Net. Sea devils can work together to create a net of sorts, interlacing their arms like the branches of trees in winter, when the leaves have fallen and left them bare.

They have an awful laugh, and they are fond of laughing hideously at those they have trapped.

The most dangerous of all sea devils is their prince, the largest and fiercest of his species. Fortunately sea devil princes are quite lazy, never moving from their position.

Their people bring him food to and take his commands.