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Cadborosaurus

Cadborosaurus
Image (midjourney.com)

The Cadborosaurus, an enigmatic sea serpent of colossal proportions, commands the ocean depths with its sinuous and serpentine form. Its shimmering scales, iridescent in the dim underwater light, range in hues from deep blues to ethereal greens, creating an otherworldly display as it glides through the water. The creature’s elongated body, adorned with intricate patterns, seems to ripple with an ancient, arcane energy.

Twin rows of razor-sharp fins line its back, cutting through the waves with an effortless grace. Its horse-like head, crowned with a regal frill, projects an air of wisdom and mystery. Glowing, luminescent eyes fixate on the surrounding aquatic realm, revealing an intelligence that transcends the natural order.

As the Cadborosaurus moves, a mesmerizing bioluminescence trails in its wake, creating an ephemeral dance of light and shadow beneath the surface. Its movements are both majestic and eerie, as if the creature is a guardian of the secrets hidden within the depths.

This marine behemoth’s massive tail, equipped with powerful muscles, propels it forward with remarkable speed. Its underbelly is adorned with specialized fins that grant it exceptional agility, allowing the Cadborosaurus to navigate the ocean depths with unparalleled grace.

Legends speak of the Cadborosaurus’s ability to manipulate the currents and waters around it, invoking ancient aquatic magic to hypnotize and ensnare its prey. Whirlpools and churning vortices are said to accompany the creature’s presence, further shrouding it in an aura of mystery and danger.

Encountering the Cadborosaurus is a rare and awe-inspiring event, leaving witnesses with tales of a creature that straddles the boundary between the mundane and the mystical, forever etching its majestic image in the annals of marine folklore.

  • Cadborosaurus 5e
  • Cadborosaurus 3.5 Homebrew
Cadborosaurus 1
Image (midjourney.com)

Huge beast (sea serpent), unaligned

Armor Class 16 (natural armor)
Hit Points 200 (20d12 + 80)
Speed 0 ft., swim 60 ft.

STRDEXCONINTWISCHA
22 (+6)16 (+3)20 (+5)12 (+1)18 (+4)14 (+2)

Skills Perception +10
Senses darkvision 120 ft., passive Perception 20
Languages Aquan, Draconic
Challenge 12 (8,400 XP)

Hold Breath. It can hold its breath indefinitely.

Aquatic Camouflage. It has advantage on Dexterity (Stealth) checks made while underwater.

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

Magic Resistance. It has advantage on saving throws against spells and other magical effects.

Amphibious. It can breathe air and water.

Multiattack. It makes three attacks: one with its bite and two with its tail.

  • Bite. Melee Weapon Attack: +10 to hit, reach 15 ft., one target. Hit: 24 (2d10 + 6) piercing damage. If the target is a creature, it must succeed on a DC 18 Strength saving throw or be grappled (escape DC 18). Until the grapple ends, the target is restrained, and the cadborosaurus can’t bite another target.
  • Tail Slap. Melee Weapon Attack: +10 to hit, reach 20 ft., one target. Hit: 20 (2d8 + 6) bludgeoning damage.

Swallow. The cadborosaurus makes one bite attack against a Large or smaller target it is grappling. If the attack hits, the target is swallowed, and the grapple ends. The swallowed target is blinded and restrained, it has total cover against attacks and other effects outside the cadborosaurus, and it takes 42 (12d6) acid damage at the start of each of the cadborosaurus’s turns.

If the cadborosaurus takes 50 damage or more on a single turn from a creature inside it, it must succeed on a DC 20 Constitution saving throw at the end of that turn or regurgitate the swallowed creature, which falls prone in a space within 10 feet of the cadborosaurus. If the cadborosaurus dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 20 feet of movement, exiting prone.

Aquatic Hypnosis (Recharge 5-6). It targets one creature it can see within 60 feet of it. The target must succeed on a DC 16 Wisdom saving throw or be charmed by the cadborosaurus for 1 minute. The charmed target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to the it’s Aquatic Hypnosis for the next 24 hours.

Legendary Actions

It can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time, and only at the end of another creature’s turn. The cadborosaurus regains spent legendary actions at the start of its turn.

  • Tail Swipe. The cadborosaurus makes one tail slap attack.
  • Aquatic Pulse (Costs 2 Actions). The cadborosaurus releases a pulse of energy in a 30-foot radius. Each creature in that area must make a DC 18 Strength saving throw, taking 18 (4d8) force damage on a failed save, or half as much damage on a successful one. Additionally, creatures that fail the save are pushed 15 feet away from the cadborosaurus.
  • Churning Vortex (Costs 3 Actions). The cadborosaurus creates a whirlpool in the water. All creatures within 60 feet of the cadborosaurus that are in water must succeed on a DC 18 Strength saving throw or be pulled 20 feet toward the cadborosaurus and knocked prone. The area becomes difficult terrain until the start of the cadborosaurus’s next turn.

Originally Posted by Raptorial of the Wizards Community forums.
On this Thread

Cadborosaurus resembles a serpent with vertical coils or humps in tandem behind the horse-like head and long neck, a pair of small elevational front flippers, and a pair of large webbed hind flippers fused to form a large fan-like tail region that provides powerful forward-swimming propulsion. Through a process of locomotory body transformation, the long slender body can be doubled up into rigid vertical humps that effectively reduce friction of the snakelike body surface with the water and enable the animal to attain high swimming speeds at the surface.

Cadborosaurus
Gargantuan animal
Hit Dice16d8+160 (232 hp)
Initiative+1 (+1 Dexterity)
SpeedSwim 70 ft. (14 squares)
Armor Class16 (-4 size, +1 Dexterity, +9 natural), touch 7, flat-footed 15
Base Attack/Grapple+12/+39
AttackTail +23 melee (3d6 +15)
Full AttackTail +23 melee (3d6 +15) and bite +18 melee (1d8 +7)
Space/Reach20 ft./15 ft.
Special Attacks
Special QualitiesLow-Light Vision
SavesFort +22, Ref +13, Will +7
AbilitiesStrength 41, Dexterity 13, Constitution 31, Intelligence 2, Wisdom 15, Charisma 9
SkillsHide -11, Listen +2, Move Silently +11, Spot +10, Swim +16
FeatsDie Hard, Endurance, Great Fortitude, lightning reflexes, Run, Track
EnvironmentTemperate aquatic
OrganizationSolitary, or Pod (5-7)
Challenge Rating15
TreasureNone
AlignmentAlways neutral
Advancement17-32 HD (Gargantuan); 33-48 HD (Colossal)
Level Adjustment
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