Swarm of Bats

Medium swarm of Tiny beasts, unaligned
Armor Class
12
Hit Points
5d8 (22)
Speed
walk
0 ft.
fly
30 ft.

STR
5 (-3)
DEX
15 (+2)
CON
10 (+0)
INT
2 (-4)
WIS
12 (+1)
CHA
4 (-3)

Senses blindsight 60 ft., passive Perception 11
Languages
Challenge 0.25 (50XP)

Damage Resistances
bludgeoning, piercing, slashing
Condition Immunities
charmed, frightened, grappled, paralyzed, petrified, prone, restrained, stunned

Special Abilities

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.