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Ion Slime

Small Ooze · Unaligned · CR 5

  • Ooze
  • Small
  • Tier 2

Ion Slime, CR 5, fills the small ooze role with unaligned disposition. Encounter regions: coastal. Sourced from Tome of Beasts 3.

Stat Block

Challenge Rating
5
Type
Ooze
Size
Small
Alignment
Unaligned
Speed
20, swim 20
Habitats
Coastal
Sources
Tome of Beasts 3

Ecology

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

Behaviour

Ion Slime 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.

Origin

Ion Slime is introduced in Kobold Press's Tome of Beasts 3 (2022). Within a campaign, its existence anchors a region with the kind of weight only an old, named species carries.

CR 5 monstersAll OozesCoastal

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Frequently Asked Questions about Ion Slime

What is the challenge rating of Ion Slime?
On the bestiary CR scale, Ion Slime sits at 5. It fits levels 5-11.
What type of creature is Ion Slime?
The bestiary type for Ion Slime is ooze, small size, unaligned alignment.
Where does Ion Slime live?
The published habitats for Ion Slime: Coastal.
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Scannable QR code encoding the URL https://www.doungim.com/dnd/monsters/ion-slime. Point a phone camera at this code to open the Ion Slime page on your mobile device — useful at the table when a DM's laptop or a printed sheet is showing the page.