Swarm of Bats

The swarm of Bats is a Medium (SRD 5.1) or Large (SRD 5.2.1) beast of challenge rating 1/4 in the fifth-edition System Reference Document.

SRD 5.1 (2014)

Swarm of Bats

Size and type
Medium beast
Challenge
1/4 (50 XP)
Armour class
12
Hit points
22 (5d8)
Speed
0 ft, fly 30 ft
Resistances
bludgeoning, piercing, slashing
Condition immunities
charmed, frightened, grappled, paralyzed, petrified, prone, restrained, stunned
Senses
blindsight 60 ft, passive perception 11
STR5-3
DEX15+2
CON10+0
INT2-4
WIS12+1
CHA4-3

Echolocation. The swarm can’t use its blindsight while deafened.

Keen Hearing. The swarm has advantage on Wisdom (Perception) checks that rely on hearing.

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny bat. The swarm can’t regain hit points or gain temporary hit points.

Actions

Bites. Melee Weapon Attack: +4 to hit, reach 0 ft., one creature in the swarm’s space. Hit: 5 (2d4) piercing damage, or 2 (1d4) piercing damage if the swarm has half of its hit points or fewer.

Page 389.

SRD 5.2.1 (2024)

Swarm of Bats

Size and type
Large beast
Challenge
1/4 (50 XP)
Armour class
12
Hit points
11 (2d10)
Speed
5 ft, fly 30 ft
Resistances
bludgeoning, piercing, slashing
Condition immunities
charmed, frightened, grappled, paralyzed, petrified, prone, restrained, stunned
Senses
blindsight 60 ft, passive perception 11
STR5-3
DEX15+2
CON10+0
INT2-4
WIS12+1
CHA4-3

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny bat. The swarm can’t regain Hit Points or gain Temporary Hit Points.

Actions

Bites. Melee Attack Roll: +4, reach 5 ft. Hit: 5 (2d4) Piercing damage, or 2 (1d4) Piercing damage if the swarm is Bloodied.

Page 361.

Fight a swarm of bats in Kith Moot. A 5e RPG in your browser with an AI game master. Free to start.

Fight a swarm of bats in Kith Moot