AC 6
HP 76 (8d10 + 32; bloodied 38)
Speed 15 ft., swim 15 ft.
Proficiency +2; Maneuver DC 13
Condition Immunities blinded , charmed , deafened , fatigue , frightened , prone
Senses blindsight 60 ft. (blind beyond this radius), passive Perception 8
Languages —
Engulfing Body. A creature that enters the cube’s space is subjected to the saving throw and consequences of its Engulf attack.
Sunlight Sensitivity. While in sunlight, the cube has disadvantage on attack rolls .
Transparent. While the cube is motionless, creatures unaware of its presence must succeed on a DC 15 Perception check to spot it.
Ooze Nature. An ooze doesn’t require air or sleep.
Euphoric Gelatin. A creature that starts its turn engulfed by the cube must make a DC 12 Constitution saving throw or be poisoned for 1 minute. While poisoned in this way, the creature is charmed while it is engulfed by the cube.
ACTIONS
Pseudopod. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (3d6) acid damage.
Engulf. The cube moves up to its Speed. While doing so, it can enter Large or smaller creatures’ spaces. Whenever the cube enters a creature’s space, the creature makes a DC 13 Dexterity saving throw . If the creature is unaware of the cube’s presence, it makes its saving throw against Engulf with disadvantage . On a success, the creature may use its reaction, if available, to move up to half its Speed without provoking opportunity attacks . If the creature doesn’t move, it is engulfed by the cube.
A creature engulfed by the cube takes 10 (3d6) acid damage, can’t breathe , is restrained , and takes 10 (3d6) acid damage at the start of each of the cube’s turns. It can be seen but has total cover . It moves with the cube. The cube can hold as many creatures as fit in its space without squeezing.
An engulfed creature can escape by using an action to make a DC 13 Strength check. On a success, the creature moves to a space within 5 feet of the cube. A creature within 5 feet can take the same action to free an engulfed creature, but takes 10 (3d6) acid damage in the process.
A particularly deadly variant of the gelatinous cube, the euphoria cube is visually indistinguishable from its gelatinous cousin. Its mass is laced with psychotropic toxins that cause the cube’s victims to experience ecstatic joy even as they are consumed
Strange, uncatalogued oozes proliferate in the sewers beneath wizards’ towers and arcane academies.
CR 3–4 blazing black pudding ; euphoria cube ; flash jelly
Oozes are ambulatory, predatory amoeboid creatures that infest caverns and other dark places. A gelatinous cube is an ooze.