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Eidolon

Medium Undead · · CR 12

  • Undead
  • Medium
  • Tier 3

Eidolon at CR 12 is logged as a medium undead. Habitat: coastal, desert, forest, grassland, mountain, and urban. Sourced from Monsters of the Multiverse and Mordenkainen's Tome of Foes.

Stat Block

Challenge Rating
12
Type
Undead
Size
Medium
Alignment
Speed
0 ft., fly 40 ft. (hover)
Habitats
Coastal, Desert, Forest, Grassland, Mountain, Urban
Sources
Monsters of the Multiverse, Mordenkainen's Tome of Foes

Ecology

Eidolon is a creature that has crossed the threshold of death; its continued presence is itself a violation of natural law. It is most often found in coastal regions. It is medium-sized, which shapes how it hunts, hides, or fights.

Behaviour

Eidolon is haunted by what it was in life; its goals echo old grievances or the will of the necromancer who raised it. 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

Eidolon is reprinted in Monsters of the Multiverse and expanded in Mordenkainen's Tome of Foes. Undead are the wounds the Negative Plane leaves on the mortal world — every undead has a death story behind it. Within a campaign, its existence anchors a region with the kind of weight only an old, named species carries.

CR 12 monstersAll UndeadsCoastalDesertForestGrasslandMountainUrban

Related Monsters

Frequently Asked Questions about Eidolon

What is the challenge rating of Eidolon?
On the bestiary CR scale, Eidolon sits at 12. It fits levels 11-16.
What type of creature is Eidolon?
The bestiary type for Eidolon is undead, medium size.
Where does Eidolon live?
Eidolon's listed habitats include Coastal, Desert, Forest, Grassland, Mountain, Urban.
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QR code linking to Eidolon — https://www.doungim.com/dnd/monsters/eidolon Scannable QR code encoding the URL https://www.doungim.com/dnd/monsters/eidolon. Point a phone camera at this code to open the Eidolon 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/eidolon. Point a phone camera at this code to open the Eidolon page on your mobile device — useful at the table when a DM's laptop or a printed sheet is showing the page.