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PFS StandardRat Swarm

A swarm of rats can cause total chaos within a household or business. Contracting filth fever is all the easier when dozens of these agitated or hungry vermin gather to bite victims en masse, making rat-hunting a viable career in many parts of the world as desperate townspeople seek relief from the disease’s spread.

Recall Knowledge - Animal (Nature): DC 15
Unspecific Lore: DC 13
Specific Lore: DC 10

Elite | Normal | Weak
Proficiency without Level

Rat SwarmCreature 1

Source Bestiary pg. 276
Perception +5; low-light vision, scent (imprecise) 30 feet
Skills Acrobatics +8, Athletics +4 (+6 to Climb or Swim), Stealth +6
Str -2, Dex +3, Con +1, Int -4, Wis +1, Cha -3
AC 14; Fort +2, Ref +7, Will +4
HP 14; Immunities precision, swarm mind; Resistances physical 6 (except bludgeoning); Weaknesses area damage 3, splash damage 3
Speed 30 feet, climb 10 feet
Filth Fever (disease) The sickened and unconscious conditions from filth fever don’t improve on their own until the disease is cured. Saving Throw DC 14 Fortitude; Stage 1 carrier with no ill effect (1d4 hours), Stage 2 sickened 1 (1 day), Stage 3 sickened 1 and slowed 1 (1 day), Stage 4 unconscious (1 day), Stage 5 deadSwarming Bites Each enemy in the swarm’s space takes 1d6 piercing damage and must attempt a DC 17 basic Reflex save. A creature that fails its save is exposed to filth fever.

All Monsters in "Rat"

Giant Rat-1
Rat Swarm1


Source Bestiary pg. 276
Rats are a ubiquitous menace, scurrying through the sewers and on the streets of nearly every settlement the world over. Though a regular rat darting underfoot might startle or even frighten the average passerby, giant rats and rat swarms are far more dangerous.

Sidebar - Additional Lore Rats and Disease

Rats have a reputation of being vicious, aggressive animals that attack food stores in great numbers and spread disease. While rats are immune to the most severe effects of their own filth fever, the disease makes them unpredictable and aggressive. Some populations of rats carry even more deadly diseases, such as bubonic plague.