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Infestation 5e D&D Guide



Greetings, fellow travelers of the multiverse! In my two decades of exploring the mystical realms of Dungeons & Dragons, one topic that continues to intrigue and unsettle adventurers is the enigmatic spell known as Infestation.

This arcane incantation embodies the chaotic and unpredictable nature of magic, weaving a web of vermin and discomfort.

In this article, we’ll unravel the secrets behind Infestation, delving into what it is, how to use it, the rules governing its peculiar effects, who can wield its arcane power, and share examples to illuminate its potential in your campaigns.

What It Infestation?

Infestation is a conjuration spell that taps into the unsettling forces of the magical weave, summoning a swarm of tiny vermin to harass and assail a chosen creature.

This 5th-level spell is a manifestation of the unpredictable and chaotic essence of magic, making it both a fascinating and unnerving choice for spellcasters.

How to Use Infestation?

To cast Infestation, a character must be capable of casting spells and have the spell on their list of known or prepared spells.

Typically favored by spellcasting classes such as sorcerers and wizards, Infestation requires verbal and somatic components.

Upon casting, the spell conjures a swarm of tiny beasts that assail a creature within range.

Rules for Using Infestation:

  • Components: Verbal and somatic components are necessary to cast Infestation. The caster utters a mystic incantation and performs specific hand gestures to unleash the spell.
  • Range: Infestation has a range of 30 feet. The caster selects a target within this range, subjecting them to the swarming vermin.
  • Damage: The spell inflicts 1d6 poison damage, and the target must succeed on a Constitution saving throw to resist being poisoned. The unpredictability of the vermin swarm introduces an element of chaos, reflecting in the saving throw.
  • Higher Levels: As with many spells in D&D 5e, Infestation can be cast using higher-level spell slots for increased damage. When cast using a 6th-level spell slot or higher, the damage increases by 1d6 for each level above 5th.

Who Can Wield Its Power:

Infestation is primarily available to spellcasting classes, such as sorcerers and wizards, that have access to the conjuration school of magic.

Characters who seek to embody the chaotic and unpredictable aspects of magic might find Infestation to be a fitting addition to their repertoire.


  1. Sorcerer of Chaos: A wild magic sorcerer, attuned to the unpredictable nature of magic, might use Infestation as a manifestation of their chaotic powers, unleashing swarms of vermin upon their foes.
  2. Wizard of the Arcane Weave: A wizard who specializes in the conjuration school could employ Infestation strategically, using the chaos of the swarm to disrupt enemy formations and sow confusion on the battlefield.

Frequently Asked Questions:

Can the vermin summoned by Infestation be controlled by the caster?

No, the vermin act independently and follow the chaotic nature of the spell, assaulting the target without direct control.

Does the damage from Infestation increase if the target fails the saving throw?

No, the damage remains constant at 1d6 poison damage, regardless of whether the target succeeds or fails the saving throw.

Can Infestation affect creatures that are immune to poison damage?

Yes, the spell can still affect creatures immune to poison damage, but the poison condition won’t apply.

Can the target of Infestation attempt the Constitution saving throw at the end of each of its turns to end the poison condition?

Yes, the target can attempt the saving throw at the end of each of its turns to end the poison condition.

Can the vermin summoned by Infestation be dispelled or destroyed?

The spell doesn’t specify that the vermin can be dispelled or destroyed, so they persist for the spell’s duration or until the target successfully saves against the poison condition.


In the ever-shifting tapestry of magical arts, Infestation stands as a testament to the chaotic and unpredictable nature of conjuration.

Whether wielded by a wild magic sorcerer or a studious wizard, this spell brings forth a swarm of vermin, creating an atmosphere of discomfort and uncertainty.

Approach its casting with caution, and let the capricious forces of magic lead you to victory or, perhaps, chaos.

May your spells be potent, and your journeys through the realms be filled with mystery and wonder!

Hey, I'm Alex Hawthorne, a D&D enthusiast for two incredible decades. From battling beholders to deciphering ancient runes, I've lived it all. Now, I'm here to share my adventures, wisdom, and a few critical hits. Let's roll!

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