Swarm of Rats — D&D 5e Monster Stats (CR 1/4)

Q: What are Swarm of Rats's AC and HP in D&D 5e?

Swarm of Rats has an Armor Class of 10 and 24 hit points (7d8-7).

Q: What Challenge Rating is a Swarm of Rats?

Swarm of Rats is CR 1/4, worth 50 XP — roughly a fair fight for a party of four characters of a similar level.

Q: What type of creature is Swarm of Rats?

Swarm of Rats is a medium swarm of tiny beasts, alignment unaligned.

Armor Class10

Hit Points24 (7d8-7)

Speed30 ft.

ChallengeCR 1/4 (50 XP)

STR

9

(-1)

DEX

11

(+0)

CON

9

(-1)

INT

2

(-4)

WIS

10

(+0)

CHA

3

(-4)

Resistancesbludgeoning, piercing, slashing

Cond. ImmuneCharmed, Frightened, Grappled, Paralyzed, Petrified, Prone, Restrained, Stunned

Sensesdarkvision 30 ft., passive Perception 10

Special Abilities

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

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

Running Swarm of Rats in an encounter

As a CR 1/4 threat worth 50 XP, Swarm of Rats is a fair challenge for a party of four at a comparable level. With no legendary actions it works best in numbers or paired with support, where its CR 1/4 rating won't be burned down in a single round. Use the XP value with the encounter builder to slot it into a balanced fight.

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