Swarm of Rats

Swarm of Rats CR: 1/4

Medium swarm of tiny beasts, unaligned

Armor Class: 10

Hit Points: 24 7d8-7

Speed: 30 ft

STR

9 -1

DEX

11 +0

CON

9 -1

INT

2 -4

WIS

10 +0

CHA

3 -4

Damage Resistances: Bludgeoning, piercing, slashing

Condition Immunities: Charmed, frightened, grappled, paralysed, petrified, prone, restrained, stunned

Senses: Darkvision 60ft, passive Perception 10

Challenge Rating: 1/4

Keen smell. The swarm has advantage on Wisdom (Perception) checks that rely on smell.
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 rat. The swarm can't regain hit points or gain temporary hit points.

Actions

Bite. Melee Weapon Attack +2 to hit, reach 0 ft, one target in the the swarm's space. Hit 7 2d6 piercing damage, or 3 1d6 piercing damage if the swarm has half of it's hit points or fewer.

Rats sometimes congregate together for safety in numbers, when breeding, and/or feeding.

Suggested Environments

Sewers, ruins, or out of the way places near a regular food source.