Barrows and Borderlands New Monster - Cultclassic Movie Monster - Beast from 20,000 fathoms

 In the world of Barrows & Borderlands, the "Beast" isn't just a monster; it’s a living relic of a prehistoric age, awakened by the hubris of modern alchemy or arcane blasting. It represents the unstoppable force of nature reclaimed from the depths. This blog post post picks right up from 

Barrows and Borderlands New Monster - Cultclassic Movie Monster - Pod People From Invasion of the Body Snatchers & The Village of St. Jerome

The Rhedosaurus

Colossal Beast, Neutral

The Rhedosaurus is a bipedal, carnivorous dinosaur of immense proportions. Its skin is a patchwork of scarred, leathery hide and jagged scales, capable of turning aside all but the most powerful siege weaponry. Beyond its physical might, the Beast carries a Primordial Blight—a prehistoric pathogen that festers in its blood and breath.

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Attributes & Statistics

Stat	Value	Modifier
Might	24	(+7)
Agility	10	(+0)
Vigor	22	(+6)
Intellect	4	(-3)
Insight	12	(+1)
Presence	18	(+4)

• Armor Class: 20 (Natural Hide)

• Hit Points: 350

• Speed: 40 ft., Swim 60 ft.

• Senses: Darkvision 120 ft., Tremorsense 60 ft.

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Traits & Passive Abilities

• Siege Monster: The Beast deals double damage to objects and structures.

• Amphibious: The Beast can breathe both air and water.

• Paleo-Contagion: Any creature that starts its turn within 15 feet of the Beast or takes damage from its bite must succeed on a Vigor Save (DC 16) or become Infected.

  • Infected: The target loses $1d6$ Vigor every 24 hours. If Vigor reaches 0, the target dies. This can only be cured by high-level restoration magic or specific ancient antitoxins.

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

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Actions

Multiattack: The Beast makes three attacks: one with its Bite and two with its Claws.

• Bite: Melee Weapon Attack: +11 to hit, reach 15 ft. Damage: $4d10 + 7$ piercing damage. The target must make a Vigor Save against the Paleo-Contagion.

• Crushing Claw: Melee Weapon Attack: +11 to hit, reach 10 ft. Damage: $3d8 + 7$ slashing damage.

• Tail Sweep (Recharge 5-6): The Beast swings its massive tail in a 30-foot cone. Each creature in that area must make an Agility Save (DC 18). On a failure, a creature takes $6d6 + 7$ bludgeoning damage and is knocked Prone. On a success, they take half damage and aren't knocked prone.

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Adventure Hooks

"It didn't come from the stars, and it didn't come from Hell. It came from right under our boots, and it's very, very hungry."

— Garrison Scout at the Hudson Outpost

1. The Thaw: A wizard’s experimental "Eternal Flame" spell accidentally melts a glacier in the Northern Wastes, releasing the Beast from its icy tomb.

2. The Silent Plague: A coastal town is decimated by a mysterious fever. The players must track the "source" in the harbor, only to find the Rhedosaurus nesting in the ruins of a sunken lighthouse.

3. The Ultimate Trophy: A mad noble offers a king’s ransom for the skull of the Beast, but "forgets" to mention that the creature's blood is toxic to the touch.