The Undead Leviathan

In the neon-soaked depths of the Mariana Trench, where bioluminescent corporations harvest genetic material from extinct species, the Abyssal Leviathan was born from a dark marriage of prehistoric fury and cyberpunk ambition—a colossal predator dredged from fossilized DNA and retrofitted with luminescent implants that cast an ethereal white glow across its massive underbelly, transforming it into an unholy beacon for prey in the lightless abyss. Originally engineered by the rogue Deeptech Syndicate as the ultimate apex hunter and living weapons platform, the creature grew far beyond their control, its body stretching across the ocean floor like a submarine canyon with teeth that could swallow city blocks whole. The glowing white markings that line its belly pulse with an otherworldly radiance, luring desperate deep-sea creatures and salvage divers alike into its cavernous maw, making it less a creature of nature and more a moving monument to humanity's hubris in the dark waters below. Decades have passed since its handlers lost contact with the beast, and now it roams the deepest trenches as a phantom of corporate ambition and evolutionary nightmare, a creature caught between the ancient world that birthed it and the technological future that tried to claim it. Whispers among the submarine crews speak of a shadow so vast it blots out entire underwater cities, and a hunger so profound that entire ecosystems collapse in its wake. The Abyssal Leviathan is neither fully alive nor fully machine, but something far more terrifying—a symbol of what happens when progress descends into the abyss without mercy or restraint.

Strength

30, modifier 10

Dexterity

10, modifier 0

Constitution

25, modifier 7

Intelligence

5, modifier -3

Wisdom

12, modifier 1

Charisma

1, modifier -5

Crushing Bite

Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 50 (8d10 + 10) piercing damage.

Tidal Wave

The Leviathan creates a massive wave in a 60 ft. line. Each creature must make a DC 20 Strength saving throw, taking 60 (10d10) bludgeoning damage on a failed save, or half as much on a success.

Devour

The Leviathan attempts to swallow a creature it has grappled. The target must succeed on a DC 20 Strength saving throw or take 70 (10d12) acid damage and be swallowed. A swallowed creature is blinded and restrained.

Dark Abyssal Roar

The Leviathan emits a terrifying roar. All creatures within 120 ft. must make a DC 20 Wisdom saving throw or be stunned until the end of their next turn.

Bioluminescent Lure

The glowing underbelly attracts creatures, granting advantage on Charisma checks against aquatic beings.

Titanic Presence

Creatures within 60 feet must succeed on a DC 20 Wisdom saving throw or be frightened until the end of their next turn.

strength

10

dexterity

0

constitution

7

intelligence

-3

wisdom

1

charisma

-5

bludgeoning

piercing

slashing