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Derro

Small Aberration · · CR 1

  • Aberration
  • Small
  • Tier 1

Derro, CR 1, fills the small aberration role. Encounter regions: mountain and underground. Sourced from Monsters of the Multiverse and Mordenkainen's Tome of Foes.

Stat Block

Challenge Rating
1
Type
Aberration
Size
Small
Alignment
Speed
30 ft.
Habitats
Mountain, Underground
Sources
Monsters of the Multiverse, Mordenkainen's Tome of Foes

Ecology

Derro is an outsider to the natural order, often associated with the Far Realm or other planes whose laws differ from this world. It is most often found in mountain regions. It is small-sized, which shapes how it hunts, hides, or fights.

Behaviour

Derro is cold and inhuman in its goals; it does not think the way mortals think. Its alignment varies by individual or is irrelevant — it acts on instinct, drive, or whoever commands it. It is intelligent enough to plan, scheme, or remember.

Origin

Derro is reprinted in Monsters of the Multiverse and expanded in Mordenkainen's Tome of Foes. Aberrations leak from the Far Realm or older creations that predate the gods, where the laws of reality differ. Within a campaign, its existence anchors a region with the kind of weight only an old, named species carries.

CR 1 monstersAll AberrationsMountainUnderground

Related Monsters

Frequently Asked Questions about Derro

What is the challenge rating of Derro?
The CR on Derro is 1. That CR suits an early or mid tier-1 group.
What type of creature is Derro?
By creature type, Derro is a aberration, small size.
Where does Derro live?
You'll find Derro in Mountain, Underground according to the bestiary entry.
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QR code linking to Derro — https://www.doungim.com/dnd/monsters/derro Scannable QR code encoding the URL https://www.doungim.com/dnd/monsters/derro. Point a phone camera at this code to open the Derro page on your mobile device — useful at the table when a DM's laptop or a printed sheet is showing the page.
Scannable QR code encoding the URL https://www.doungim.com/dnd/monsters/derro. Point a phone camera at this code to open the Derro page on your mobile device — useful at the table when a DM's laptop or a printed sheet is showing the page.