Fortitude +32, Reflex +20, Will +23
Athletics +33, Stealth +20
Darkvision, Tremorsense 100 feet Imprecise
Actions & Abilities
Jaws
Damage: 3d12+16 Piercing
Stinger
Damage: 4d6+16 Piercing
Body
Damage: 2d8+14 Bludgeoning
Tremorsense (Imprecise) 100 feet
Inexorable
The benthic worm recovers from the , , and conditions at the end of its turn. It's also immune to penalties to its Speeds and the condition, and it ignores difficult terrain and greater difficult terrain.
Slough Skin
Frequency once per day
Trigger The benthic worm would be affected by a condition or adverse effect (such as )
Effect The benthic worm negates the triggering condition or effect by sloughing an outer layer of its skin. Effects from artifacts, deities, or a similarly powerful source can't be avoided in this way.
Benthic Worm Venom
Saving Throw
Maximum Duration 6 rounds
Stage 1 3d6[poison] damage and Clumsy 2 (1 round)
Stage 2 4d6[poison] damage and clumsy 2 (1 round)
Stage 3 6d6[poison] damage and clumsy 2 (1 round)
Breach
The benthic worm Swims up to its swim Speed, then Leaps vertically out of the water up to 30 feet, making a Strike against a creature at the apex of the jump (this lets it attack a creature within 45 feet of the water's surface). After the Strike, the worm splashes back down. It can use on this Strike and follow it up with Fast Swallow.
Fast Swallow
Trigger The worm Grabs a creature.
Effect The worm uses Swallow Whole.
Swallow Whole
Huge, (3d8+10)[bludgeoning], Rupture 27
Thrash
The worm makes a Strike once against each creature in its reach. It can Strike up to once with its jaws, up to once with its stinger, and any number of times with its body. Each attack counts toward the worm's multiple attack penalty, but the multiple attack penalty doesn't increase until after it makes all the attacks.
Improved Grab
Creature Abilities
Inexorable. The benthic worm recovers from the , , and conditions at the end of its turn. It's also immune to penalties to its Speeds and the condition, and it ignores difficult terrain and greater difficult terrain.
Slough Skin. Frequency once per day
Trigger The benthic worm would be affected by a condition or adverse effect (such as )
Effect The benthic worm negates the triggering condition or effect by sloughing an outer layer of its skin. Effects from artifacts, deities, or a similarly powerful source can't be avoided in this way.
Benthic Worm Venom. Saving Throw
Maximum Duration 6 rounds
Stage 1 3d6[poison] damage and Clumsy 2 (1 round)
Stage 2 4d6[poison] damage and clumsy 2 (1 round)
Stage 3 6d6[poison] damage and clumsy 2 (1 round)
Breach. The benthic worm Swims up to its swim Speed, then Leaps vertically out of the water up to 30 feet, making a Strike against a creature at the apex of the jump (this lets it attack a creature within 45 feet of the water's surface). After the Strike, the worm splashes back down. It can use on this Strike and follow it up with Fast Swallow.
Fast Swallow. Trigger The worm Grabs a creature.
Effect The worm uses Swallow Whole.
Swallow Whole. Huge, (3d8+10)[bludgeoning], Rupture 27
Thrash. The worm makes a Strike once against each creature in its reach. It can Strike up to once with its jaws, up to once with its stinger, and any number of times with its body. Each attack counts toward the worm's multiple attack penalty, but the multiple attack penalty doesn't increase until after it makes all the attacks.
Source, license, and attribution
Source: Pathfinder Monster Core (remaster-core-2026-08-10)
This product is licensed under the ORC License located at the Library of Congress at TX 9-307-067 and available online at various locations. All warranties are disclaimed as set forth therein. Attribution: Pathfinder Monster Core (c) 2024, Paizo Inc.; Authors: Alexander Augunas, Dennis Baker, Kate Baker, Joshua Birdsong, Joseph Blomquist, Logan Bonner, Jason Bulmahn, James Case, John Compton, Paris Crenshaw, Adam Daigle, Darrin Drader, Brian Duckwitz, Robert N. Emerson, Scott Fernandez, Eleanor Ferron, Leo Glass, Matthew Goodall, BJ Hensley, Thurston Hillman, Vanessa Hoskins, James Jacobs, Jenny Jarzabski, Miko Kallio, Jason Keeley, Jeff Lee, Lyz Liddell, Luis Loza, Ron Lundeen, Robert G. McCreary, Philippe-Antoine Menard, Jacob W. Michaels, Dave Nelson, Jason Nelson, Tim Nightengale, Stephen Radney-MacFarland, Mikhail Rekun, Patrick Renie, Alex Riggs, David N. Ross, Michael Sayre, Mark Seifter, Chris S. Sims, Amber Stewart, Jeffrey Swank, William Thompson, Jason Tondro, Clark Valentine, Landon Winkler, Tonya Woldridge, and Linda Zayas-Palmer. Adaptation: Myth Meister PF2e Remaster Compendium, 2026. If you use this Adapted Licensed Material, please credit Myth Meister. The normalized rules records and rules-reference text in the Myth Meister PF2e Remaster Compendium are Adapted Licensed Material offered under the ORC License. Reserved Material in this product includes the Myth Meister name and logos, application source code, visual design and trade dress, and original campaign content. Pathfinder, Paizo, product logos, artwork, maps, trade dress, setting lore, characters, deities, locations, organizations, events, plots, and other Paizo Reserved Material are not included. Myth Meister is not affiliated with or endorsed by Paizo Inc. Expressly Designated Licensed Material: None.