Psychic Gray Ooze

Medium Ooze, Unaligned

AC: 9

Initiative: -1 (9)

HP: 37 (5d8 + 15)

Speed: 10 ft., climb 10 ft.

STR
12 (+1)
DEX
8 (-1)
CON
16 (+3)
INT
10 (+0)
WIS
6 (-2)
CHA
2 (-4)

Skills: Stealth +3

Resistances: acid; cold; fire; psychic

Condition Immunities: blinded; charmed; deafened; exhaustion; frightened; grappled; prone; restrained

Senses: Blindsight 60 ft., Passive Perception 8

CR: 1 (XP 200; PB +2)

Habitat: Underdark

Amorphous.

The ooze can move through a space as narrow as 1 inch without expending extra movement to do so.

Actions

Pseudopod.

Melee Attack Roll: +3, reach 5 ft. Hit: 11 (3d6 + 1) Acid damage, and the target has Disadvantage on Intelligence saving throws until the end of the ooze's next turn.

Psychic Crush.

Intelligence Saving Throw: DC 10, one creature the ooze can see within 60 feet. Failure: 13 (3d8) Psychic damage.

Reactions

Mind Corrosion.

Trigger: The ooze fails a saving throw against a spell or another magical effect created by a creature. Response: The triggering creature takes 3 (1d6) Psychic damage.

Find this creature in the encounter builder

Psychic Gray Ooze

Source: Monster Manual (2025), p. 151 - Licenses and attribution