Bestiary >(Bestiary) By Type >Animals >Bat >

Bat Swarm

Hundreds of high-pitched squeaks fill the air as a mass of small, carnivorous bats surges forth, all of them hungry for blood.
Bat Swarm CR 2

XP 600
N Diminutive animal (swarm)

+2; Senses blindsense 20 ft., low-light vision; Perception +15


AC 16, touch 16, flat-footed 14 (+2 Dex, +4 size)
13 (3d8)
+3, Ref +7, Will +3
Defensive Abilities
swarm traits; Immune weapon damage


Speed 5 ft., fly 40 ft. (good)
swarm (1d6)
10 ft.; Reach 0 ft.
Special Attacks
distraction (DC 11), wounding


Str 3, Dex 15, Con 11, Int 2, Wis 14, Cha 4
Base Atk
+2; CMB —; CMD
Lightning Reflexes, Skill Focus (Perception)
Fly +12, Perception +15; Racial Modifiers +4 Perception when using blindsense
swarm traits


Wounding (Ex)

Any living creature damaged by a bat swarm continues to bleed, losing 1 hit point per round thereafter. Multiple wounds do not result in cumulative bleeding loss. The bleeding can be stopped by a DC 10 Heal check or the application of a cure spell or some other healing magic.

Image of Reaper Miniatures’ 03355: Bat Swarm
Sculpted by Werner Klocke
See this Model at the Reaper Store


Environment any temperate or tropical
solitary, pair, flight (3–6 swarms), or colony (11–20 swarms)

Bat swarms dwell in large caves, ruins, or even city sewers—anywhere they can find darkness to hide in during the day and a supply of food to feast upon at night. They are only encountered outside in a group at dawn or dusk, or when they have been startled and forced to flee their lairs.