Swarm of Insects

Beast · Medium

Swarm of Insects
The plague of locusts descending on Egypt, engraving by Jan Sadeler after Maarten van Cleef, c. 1585 · Jan Sadeler I after Maarten van Cleef, The Plague of Locusts, engraving, c. 1585, CC0, Wikimedia Commons

Swarms of insects rise from swamps, carcasses and rotting ruins: biting flies, beetles, ants or locusts in a crawling mass. They sting and bite through gaps in armour. Some are drawn by sorcery or curses rather than nature.

Danger
A threat to the unwary
How it is met
In swarms, day and night
Challenge
1/2
SRD 5.2.1 stat blocks
Swarm of Insects

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Where it is met

Tropical Rainforest, Swamp, Marsh, Cursed Temperate Forest, Cursed Temperate Conifer Forest, Cursed Taiga, Cursed Swamp, Cursed Bog, Cursed Marsh, Cursed Grassland, Cursed Hot Desert, Cursed Tundra, Cursed Cave, Toxic Swamp, Toxic Marsh, Toxic Mangrove, Toxic Tropical Rainforest, Toxic Cave

Also: Ruin, Crypt

Stat blocks (D&D 5e)

Swarm of Insects

Medium Swarm of Tiny Beasts, Unaligned

AC 11 · Initiative +1 (11)

HP 19 (3d8 + 6)

Speed 20 ft., Climb or Fly 20 ft. (GM’s choice)

StrDexConIntWisCha
3 (−4), save −413 (+1), save +114 (+2), save +21 (−5), save −57 (−2), save −21 (−5), save −5

Resistances Bludgeoning, Piercing, Slashing

Immunities Charmed, Frightened, Grappled, Paralyzed, Petrified, Prone, Restrained, Stunned

Senses Blindsight 30 ft.; Passive Perception 8

Languages None

CR 1/2 (XP 100; PB +2)

Traits

Spider Climb. If the swarm has a Climb Speed, the swarm can climb difficult surfaces, including along ceilings, without needing to make an ability check.

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.

Actions

Bites. Melee Attack Roll: +3, reach 5 ft. Hit: 6 (2d4 + 1) Poison damage, or 3 (1d4 + 1) Poison damage if the swarm is Bloodied.

This work includes material from the System Reference Document 5.2.1 ("SRD 5.2.1") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.

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