Stone-Eater Slime — fantasy monster illustration. Stone-Eater Slime is a small ooze (Challenge Rating 4).

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Stone-Eater Slime

Small Ooze, unaligned

AC
12
HP
90
Speed
20
CR
4

Armor Class 12 (natural armor)

Hit Points 90 (12d6+48)

Speed 20 ft., climb 10 ft.


STR
16 (+3)
DEX
11 (+0)
CON
19 (+4)
INT
1 (-5)
WIS
6 (-2)
CHA
3 (-4)

Skills Perception -2

Damage Immunities acid

Condition Immunities blinded, charmed, deafened, exhaustion, frightened, petrified, prone

Senses blindsight 60' (blind beyond), passive Perception 8

Languages

Challenge 4


Traits

Amorphous. Move through space 1ft.+ wide with o squeezing.

Ooze Nature. Doesn't require sleep.

Spider Climb. Difficult surfaces even ceilings no ability check.

Actions

Multiattack. Two Slam attacks.

Slam. Melee Weapon Attack: +5 to hit, 5 ft., one target, 10 (2d6+3) bludgeoning damage + 3 (1d6) acid. Target petrified 1 min (DC 14 Con). Petrified creature can re-save at end of each of its turns success ends effect on itself.

Dissolve Stone. Touches petrified creature or nonmagical object or structure made of crystal or stone within 5 ft. of it ingesting some. If object isn't being worn or carried touch destroys a 6-inch cube of it and slime regains 10 (3d6) hp. If object is being worn or carried by a creature creature can make DC 14 Dex save to avoid slime's touch. If target is a petrified creature: 21 (6d6) acid (DC 14 Con half). Being petrified doesn't give creature resistance to this damage. Slime regains hp equal to half the damage taken. If object touched is stone armor or stone shield worn or carried it takes a permanent and cumulative -1 penalty to AC it offers. Armor reduced to AC 10 or shield that drops to +0 bonus is destroyed. If object touched is a held stone weapon it takes a permanent and cumulative -1 penalty to damage rolls. If penalty drops to -5 it is destroyed

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Stone-Eater Slime — fantasy monster illustrationPrimary
FTTHelper · auto-generated · monster · monster

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Further reading

Jetpack7 Game Master Series
The Game Master's Book of Random Encounters
Jeff Ashworth · 2020
The Game Master's Book of Traps, Puzzles and Dungeons
Jeff Ashworth · 2022
The Game Master's Book of Legendary Dragons
Aaron Hübrich · 2022