Swarm of Spiders — D&D 5e Monster Stats (CR 1/2)

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

Swarm of Spiders has an Armor Class of 12 and 22 hit points (5d8).

Q: What Challenge Rating is a Swarm of Spiders?

Swarm of Spiders is CR 1/2, worth 100 XP — roughly a fair fight for a party of four characters of a similar level.

Q: What type of creature is Swarm of Spiders?

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

Armor Class12

Hit Points22 (5d8)

Speed20 ft., climb 20 ft.

ChallengeCR 1/2 (100 XP)

STR

3

(-4)

DEX

13

(+1)

CON

10

(+0)

INT

1

(-5)

WIS

7

(-2)

CHA

1

(-5)

Resistancesbludgeoning, piercing, slashing

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

Sensesblindsight 10 ft., passive Perception 8

Special Abilities

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 insect. The swarm can't regain hit points or gain temporary hit points.

Spider Climb. The swarm can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Web Sense. While in contact with a web, the swarm knows the exact location of any other creature in contact with the same web.

Web Walker. The swarm ignores movement restrictions caused by webbing.

Actions

Bites. Melee Weapon Attack: +3 to hit, reach 0 ft., one target in the swarm's space. Hit: 10 (4d4) piercing damage, or 5 (2d4) piercing damage if the swarm has half of its hit points or fewer.

Running Swarm of Spiders in an encounter

As a CR 1/2 threat worth 100 XP, Swarm of Spiders 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 1/2 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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