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Elder Oblex

Huge Ooze · · CR 10

  • Ooze
  • Huge
  • Tier 2

Elder Oblex at CR 10 is logged as a huge ooze. Habitat: swamp, underground, and urban. Sourced from Monsters of the Multiverse and Mordenkainen's Tome of Foes.

Stat Block

Challenge Rating
10
Type
Ooze
Size
Huge
Alignment
Speed
20 ft.
Habitats
Swamp, Underground, Urban
Sources
Monsters of the Multiverse, Mordenkainen's Tome of Foes

Ecology

Elder Oblex is a primitive life form thriving wherever there is moisture and decay — sewers, dungeons, deep caves. It is most often found in swamp regions. It is huge-sized, which shapes how it hunts, hides, or fights.

Behaviour

Elder Oblex is mindless hunger, drawn to motion and warmth, indifferent to consequence. Its alignment varies by individual or is irrelevant — it acts on instinct, drive, or whoever commands it. It is largely instinct-driven; complex strategy is the work of whoever (or whatever) commands it. Spellcasting expands its repertoire well beyond what its physical stat block alone suggests.

Origin

Elder Oblex is reprinted in Monsters of the Multiverse and expanded in Mordenkainen's Tome of Foes. Within a campaign, its existence anchors a region with the kind of weight only an old, named species carries.

CR 10 monstersAll OozesSwampUndergroundUrban

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Frequently Asked Questions about Elder Oblex

What is the challenge rating of Elder Oblex?
Elder Oblex is rated CR 10. The rating fits well-established adventuring parties.
What type of creature is Elder Oblex?
The bestiary type for Elder Oblex is ooze, huge size.
Where does Elder Oblex live?
You'll find Elder Oblex in Swamp, Underground, Urban according to the bestiary entry.
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QR code linking to Elder Oblex — https://www.doungim.com/dnd/monsters/elder-oblex Scannable QR code encoding the URL https://www.doungim.com/dnd/monsters/elder-oblex. Point a phone camera at this code to open the Elder Oblex 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/elder-oblex. Point a phone camera at this code to open the Elder Oblex page on your mobile device — useful at the table when a DM's laptop or a printed sheet is showing the page.