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Swarm of Vampire Bats in Dungeons & Dragons 5e

Swarm of Vampire Bats CR: 1

Medium swarm of tiny beasts, unaligned
Armor Class: 12
Hit Points: 20 (8d4) 8d4
Speed: 0 ft , fly: 30 ft

STR

5 -3

DEX

15 +2

CON

10 +0

INT

2 -4

WIS

12 +1

CHA

4 -3

Damage Resistances: Bludgeoning, Piercing and Slashing
Condition Immunities: Charmed, Frightened, Grappled, Paralyzed, Petrified, Prone, Restrained, Stunned
Senses: Blindsight 60 Ft, passive Perception 11
Challenge Rating: 1

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.

Actions

Blooddrinker Bites (swarm has more than half HP). Melee Weapon Attack: +4 to hit, reach 0 ft, one creature in the swarm's space. Hit: (2d4) piercing damage plus (1d4) necrotic damage, the swarm heals by half the amount of necrotic damage dealt, rounded down. Targets hit with this attack must also succeed on a Constitution saving throw (DC 13) or contract Sanguinare Vampiris.   Blooddrinker Bites (swarm has half HP or less). Melee Weapon Attack: +4 to hit, reach 0 ft, one creature in the swarm's space. Hit: (1d4) piercing damage plus (1d4) necrotic damage, the swarm heals by half the amount of necrotic damage dealt, rounded down. Targets hit with this attack must also succeed on a Constitution saving throw (DC 13) or contract Sanguinare Vampiris.

Harvesting: Vampire Dust

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