Archives of Nethys

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Plague Swarm

Source Bestiary 5 pg. 192

Sent down by vengeful deities to punish communities that have offended them, plague swarms scour crops, terrorize populations, and lay waste to civilized lands. Normal means of dealing with vermin and pestilence don’t drive them off, for these vicious and intelligent mythic swarms carry the destructive blessings of their gods, and breed at an exceptional rate until their spawn consume entire cities. They are single-minded in their devotion to carrying out the furious will of their deities.

All plague swarms have the following features.


Environment any
Organization solitary or brood (plague swarm plus 1–100 spawn)
Treasure none

Special Abilities

Blight (Su) Plague swarms deal additional untyped damage equal to their standard swarm damage. This damage originates from divine power, similar to the spell flame strike. A plague swarm’s damage counts as magic and epic for the purposes of bypassing damage reduction.

Multiply (Ex) Plague swarms spawn at an incredible rate. Once per minute, a plague swarm can produce a new swarm of the type listed in its stat block as full-round action. When the plague swarm is not in combat, it typically uses this ability once per minute. If the plague swarm is destroyed, all of the swarms that it spawned also disperse.

Reform (Su) When a plague swarm is dispersed by damage, it is not destroyed. A dispersed plague swarm reforms in 24 hours. Each plague swarm has a unique destruction condition. In addition, because plague swarms are manifestations of divine retribution, placating the deity’s rage destroys the swarm instantly.

Creatures in Mythic "Plague Swarm" Category

Bat Plague Swarm178
Locust Plague Swarm158
Rat Plague Swarm118

Plague Swarm, Locust Plague Swarm

Mythic Locust Plague Swarm CR 15/MR 8

Source Bestiary 5 pg. 192
XP 51,200
NE Fine magical beast (mythic, swarm)
Init +16M/–4, dual initiative; Senses darkvision 60 ft., low-light vision; Perception +24


AC 31, touch 23, flat-footed 26 (+4 Dex, +1 dodge, +8 natural, +8 size)
hp 216 (21d10+101); fast healing 5
Fort +15, Ref +18, Will +13; second save
Defensive Abilities reform, swarm traits, unstoppable; DR 10/epic; Immune mind-affecting effects, weapon damage


Speed 10 ft., climb 10 ft., fly 40 ft. (good)
Melee swarm (5d6 plus 5d6 blight, devour, and distraction)
Space 20 ft., Reach 0 ft.
Special Attacks devour, distraction (DC 23), mythic power (8/day, surge +1d10)


Str 6, Dex 19, Con 12, Int 5, Wis 18, Cha 9
Base Atk +21; CMB —; CMD
Feats Ability Focus (distraction), DodgeM, Extra Mythic PowerM, Great Fortitude, Improved InitiativeM, Improved Lightning Reflexes, Iron Will, Lightning ReflexesM, Lightning Stance, Skill Focus (Fly), Skill Focus (Perception), Wind Stance
Skills Climb +12, Fly +35, Perception +24
Languages Abyssal (can’t speak)
SQ multiply (locust swarm with the devour ability)

Special Abilities

Devour (Ex) A locust plague swarm devours everything in its path. Its swarm attack damages all unattended objects and all attended items that are not magical. Each round, the locusts also damage one attended magic item worn or carried by each creature damaged by the swarm. Each round, the swarm can affect only one magic item per creature, even with its dual initiative. If a creature possesses more than one attended magic item, use the table for items affected by magical attacks (Pathfinder RPG Core 216) to Rulebook determine which magic item the swarm targets. The locusts’ powerful jaws count as adamantine for the purpose of bypassing DR and bypass all hardness less than 20.
Reform (Su) A locust plague swarm is truly destroyed only if it devours a good-aligned minor artifact or holy relic.

There is no description for this monster.