Insect Plague spell icon: a swarm of insects
Icon by Delapouite, CC BY 3.0

Insect Plague 5e spell

5th-level conjuration (concentration) · 2024 version below

Casting time
1 action
Range
300 feet
Components
V, S, M (A few grains of sugar, some kernels of grain, and a smear of fat)
Duration
Concentration, Up to 10 minutes
School
Conjuration
Level
5
Saving throw
Constitution
Damage type
Piercing

Swarming, biting locusts fill a 20-foot-radius sphere centered on a point you choose within range. The sphere spreads around corners. The sphere remains for the duration, and its area is lightly obscured. The sphere's area is difficult terrain.

When the area appears, each creature in it must make a Constitution saving throw. A creature takes 4d10 piercing damage on a failed save, or half as much damage on a successful one. A creature must also make this saving throw when it enters the spell's area for the first time on a turn or ends its turn there.

At higher levels

When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d10 for each slot level above 5th.

Insect Plague damage by spell slot level

Spell slot levelDamageAverage
5th4d10 piercing22
6th5d10 piercing27.5
7th6d10 piercing33
8th7d10 piercing38.5
9th8d10 piercing44

Averages are the dice’s expected total. A target that succeeds on its Constitution save takes half. Roll any row in the dice roller.

Classes that can cast Insect Plague

ClassFirst availableSpellcasting ability
Cleric spells9th character levelWisdom
Druid spells9th character levelWisdom
Sorcerer spells9th character levelCharisma

Insect Plague in the 2024 rules

The 2024 Player’s Handbook revised many spells, and the SRD 5.2 carries the new text. What changed from the 2014 version above:

Same level, casting time, range, components, duration and dice; the text is reworded for the 2024 rules glossary.

Casting time
Action
Range
300 feet
Components
V, S, M (a locust)
Duration
Concentration, up to 10 minutes
School
Conjuration
Level
5
Classes
Cleric, Druid, Sorcerer
Tags
concentration

Swarming locusts fill a 20-foot-radius Sphere centered on a point you choose within range. The Sphere remains for the duration, and its area is Lightly Obscured and Difficult Terrain.

When the swarm appears, each creature in it makes a Constitution saving throw, taking 4d10 Piercing damage on a failed save or half as much damage on a successful one. A creature also makes this save when it enters the spell's area for the first time on a turn or ends its turn there. A creature makes this save only once per turn.

Using a Higher-Level Spell Slot. The damage increases by 1d10 for each spell slot level above 5.

2024 version from the SRD 5.2. Most tables settle on one edition, so check which one yours uses.

Other 5th-level conjuration spells

Other piercing spells

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