Fortitude +18, Reflex +16, Will +13
Acrobatics +16, Athletics +17, Intimidation +15, Stealth +16
Darkvision, Tremorsense 30 feet Imprecise
Aklo, Common
Precision, Swarm Mind
Physical 5, Poison 5
Area Damage 10, Splash Damage 10
Actions & Abilities
Flail
Damage: 2d6+11 Bludgeoning
Light Hammer
Damage: 1d6+11 Bludgeoning
Light Hammer
Damage: 1d6+11 Bludgeoning
Fist
Damage: 1d4+11 Bludgeoning
All-Around Vision
Swarm Mind
Agitated by Light
When exposed to bright light, the skittering slayer must attempt a save. On a failure, they become Frightened 1 (Frightened 2 on a critical failure). The skittering slayer then becomes immune to being agitated by light for 10 minutes.
Discorporate
When the swarm strider is reduced to 0 HP, their constituent creatures collapse, scattering on the ground under their space and each adjacent square. If even one of the creatures gets away, the swarm strider can eventually re-form over 1d10 days (potentially longer in areas where there are few invertebrates). The scattered invertebrates must be destroyed within 1 round to destroy the swarm strider permanently. The invertebrates have a collective pool of 32 HP, and the same AC, saves, immunities, resistances, and weaknesses as the swarm strider. The invertebrates can't take actions but they escape automatically once the round elapses. At the GM's discretion, clever means of trapping or eliminating the creatures might be sufficient to destroy the swarm strider.
Scatter
Trigger The skittering slayer is targeted by a splash attack or would attempt a Reflex save against an area effect
Effect The skittering slayer scatters in place, gaining a +2 circumstance bonus to AC and Reflex saves against the triggering effect.
Clinging Remnants
A swarm strider's melee Strikes and ranged Strikes made against targets within their weapon's first range increment deposit biting vermin on the target, dealing 2d4[persistent,piercing] damage.
Draw Bugs
The swarm strider draws more arthropods from the environment around them to reconstitute some of their damaged body. They regain 10 HP. At the GM's discretion, the swarm strider doesn't recover HP in areas where there aren't enough arthropods to call to themselves.
Squirming Embrace
The swarm strider Strides. If they end their movement sharing a space with a creature, they deal 3d6[piercing] damage to the creature, with a . The swarm strider can Burrow, Climb, Fly, or Swim instead of Striding if they have the corresponding movement type.
Swarm Shape
The swarm strider collapses into a shapeless swarm of their constituent creatures. They drops all items in their possession. In this form, the swarm strider can't use attack actions and can't cast spells, but they can move through areas small enough for their constituent creatures to fit without having to Squeeze. They can use the same action to coalesce from their swarm shape back into their normal form.
Creature Abilities
Agitated by Light. When exposed to bright light, the skittering slayer must attempt a save. On a failure, they become Frightened 1 (Frightened 2 on a critical failure). The skittering slayer then becomes immune to being agitated by light for 10 minutes.
Discorporate. When the swarm strider is reduced to 0 HP, their constituent creatures collapse, scattering on the ground under their space and each adjacent square. If even one of the creatures gets away, the swarm strider can eventually re-form over 1d10 days (potentially longer in areas where there are few invertebrates). The scattered invertebrates must be destroyed within 1 round to destroy the swarm strider permanently. The invertebrates have a collective pool of 32 HP, and the same AC, saves, immunities, resistances, and weaknesses as the swarm strider. The invertebrates can't take actions but they escape automatically once the round elapses. At the GM's discretion, clever means of trapping or eliminating the creatures might be sufficient to destroy the swarm strider.
Scatter. Trigger The skittering slayer is targeted by a splash attack or would attempt a Reflex save against an area effect
Effect The skittering slayer scatters in place, gaining a +2 circumstance bonus to AC and Reflex saves against the triggering effect.
Clinging Remnants. A swarm strider's melee Strikes and ranged Strikes made against targets within their weapon's first range increment deposit biting vermin on the target, dealing 2d4[persistent,piercing] damage.
Draw Bugs. The swarm strider draws more arthropods from the environment around them to reconstitute some of their damaged body. They regain 10 HP. At the GM's discretion, the swarm strider doesn't recover HP in areas where there aren't enough arthropods to call to themselves.
Squirming Embrace. The swarm strider Strides. If they end their movement sharing a space with a creature, they deal 3d6[piercing] damage to the creature, with a . The swarm strider can Burrow, Climb, Fly, or Swim instead of Striding if they have the corresponding movement type.
Swarm Shape. The swarm strider collapses into a shapeless swarm of their constituent creatures. They drops all items in their possession. In this form, the swarm strider can't use attack actions and can't cast spells, but they can move through areas small enough for their constituent creatures to fit without having to Squeeze. They can use the same action to coalesce from their swarm shape back into their normal form.
Source, license, and attribution
Source: Pathfinder Monster Core 2 (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 2 (c) 2025, Paizo Inc.; Authors: Alexander Augunas, Jesse Benner, Joshua Birdsong, Logan Bonner, Jason Bulmahn, James Case, Jessica Catalan, John Compton, Paris Crenshaw, Adam Daigle, Katina Davis, Jesse Decker, Darrin Drader, Felix Dritz, Brian Duckwitz, Robert N. Emerson, Scott Fernandez, Eleanor Ferron, Hexe Fey, Benjamin Fields, Keith Garret, Scott Gladstein, Leo Glass, Matthew Goodall, Alice Grizzle, T.H. Gulliver, Sen H.H.S., Steve Hammond, Tim Hitchcock, Joan Hong, Vanessa Hoskins, James Jacobs, Brian R. James, Michelle Jones, TJ Kahn, Mikko Kallio, Jason Keeley, Joshua Kim, Avi Kool, John Laffan, Lyz Liddell, Luis Loza, Colm Lundberg, Ron Lundeen, Mahpiya, Philippe-Antoine Menard, Jacob W. Michaels, Patchen Mortimer, Dennis Muldoon, Andrew Mullen, Quinn Murphy, Dave Nelson, Jason Nelson, K. Tessa Newton, Tim Nightengale, Samantha Phelan, Randy Price, Stephen Radney-MacFarland, BJ Recio, Jessica Redekop, Mikhail Rekun, Patrick Renie, Alex Riggs, David N. Ross, Simone D. Sallé, Michael Sayre, David Schwartz, Mark Seifter, Chris Sims, Rodney Sloan, Shay Snow, Kendra Leigh Speedling, Amber Stewart, Jeffrey Swank, Tan Shao Han, Russ Taylor, William Thompson, Jason Tondro, Clark Valentine, Ruvaid Virk, Andrew White, Landon Winkler, 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.