monster

Slarkrethel

CR 25

Gargantuan Monstrosity (titan), Chaotic Evil

Reveal Stat Block

Armor Class

18 (natural armor)

Hit Points

472 (27d20 + 189)

Speed

20 ft., swim 60 ft.

str

+10

dex

con

int

wis

cha

Traits

Legendary Resistance (3/Day).If Slarkrethel fails a saving throw, it can choose to succeed instead.

Amphibious.Slarkrethel can breathe air and water.

Freedom of Movement.Slarkrethel ignores difficult terrain||3, and magical effects can't reduce its speed or cause it to be restrained. It can spend 5 feet of movement to escape from nonmagical restraints or being grappled.

Siege Monster.Slarkrethel deals double damage to objects and structures.

Actions

Multiattack.Slarkrethel makes three tentacle attacks, each of which it can replace with one use of Fling.

Bite.mw 17 to hit, reach 5 ft., one target. ({@damage 3d8 + 10) piercing damage. If the target is a Large or smaller creature grappled by Slarkrethel, that creature is swallowed, and the grapple ends. While swallowed, the creature is blinded and restrained, it has Cover||3||total cover against attacks and other effects outside Slarkrethel, and it takes 42 (12d6) acid damage at the start of each of Slarkrethel's turns. If Slarkrethel takes 50 damage or more on a single turn from a creature inside it, Slarkrethel must succeed on a 25 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of Slarkrethel. If Slarkrethel dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 15 feet of movement, exiting prone.

Tentacle.mw 17 to hit, reach 30 ft., one target. ({@damage 3d6 + 10) bludgeoning damage, and the target is grappled (escape 18). Until this grapple ends, the target is restrained. Slarkrethel has ten tentacles, each of which can grapple one target.

Fling.One Large or smaller object held or creature grappled by Slarkrethel is thrown up to 60 feet in a random direction and knocked 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 18 Dexterity saving throw or take the same damage and be knocked prone.

Lightning Storm.Slarkrethel magically creates three bolts of lightning, each of which can strike a target Slarkrethel can see within 120 feet of it. A target must make a 23 Dexterity saving throw, taking 22 (4d10) lightning damage on a failed save, or half as much damage on a successful one.

Legendary Actions.The creature can take 3 legendary actions...

Tentacle Attack or Fling.Slarkrethel makes one tentacle attack or uses its Fling.

Lightning Storm (Costs 2 Actions).Slarkrethel uses Lightning Storm.

Ink Cloud (Costs 3 Actions).While underwater, Slarkrethel expels an ink cloud in a 60-foot radius. The cloud spreads around corners, and that area is heavily obscured to creatures other than Slarkrethel. Each creature other than Slarkrethel that ends its turn there must succeed on a 23 Constitution saving throw, taking 16 (3d10) poison damage on a failed save, or half as much damage on a successful one. A strong current disperses the cloud, which otherwise disappears at the end of Slarkrethel's next turn.

Slarkrethel

Beneath the waves, the kraken sleeps for untold ages, awaiting some fell sign or calling. Land-born mortals who sail the open sea forget the reasons their ancestors dreaded the ocean, even as the races of the deep ignore strange gaps in their histories when their civilizations nearly vanished after the appearance of the tentacled horror.

Leviathans of Legend

At the beginning of time, krakens served as fierce warriors of the gods. When the gods' wars ended, the krakens shrugged free of their servitude, never again to be bound by other beings. Whole nations quake in fear when the kraken emerges from its dark demesne, and even in the middle of the deepest oceans, storms rise or abate according to its will. The kraken is a primeval force that obliterates the greatest achievements of civilization as if they were castles in the sand. Its devastating attacks can destroy ocean trade and halt communication between coastal cities.

An ominous darkness presages a kraken's attack, and a cloud of inky poison colors the water around it. Galleons and warships vanish when its tentacles uncoil from the deep, the kraken breaking their masts like kindling before drawing down ships and crew. Not even landlocked surface dwellers are safe from a kraken's wrath. Krakens can breathe air as easily as water, and some crawl up rivers to nest in freshwater lakes, destroying cities and towns along the way. Adventurers tell of these monsters lairing in the ruins of lakeside citadels, their tentacles twined around leaning towers of disintegrating stone.

Mortal Foes

Some krakens are virtual gods, with cults and minions spread across sea and land. Others are allied with Olhydra, the evil Princess of Elemental Water, and use her cultists to enforce their will on land and sea. A kraken pleased with its worshipers can becalm rough seas and bring a bounteous harvest of fish to the faithful. However, the devious mind of a kraken is ancient beyond reckoning, and is ultimately bent to the ruination of all things.

A Kraken's Lair

A kraken lives in dark depths, usually a sunken rift or a cavern filled with detritus, treasure, and wrecked ships.