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Monster

Gelatinous Cube

Large Ooze · Unaligned

Monster Manual (2024) Page 129
Armor Class 6
Hit Points 63 (6d10 + 30)
Speed Walk 15 ft.
CR 2
STR 14 +2
DEX 3 -4
CON 20 +5
INT 1 -5
WIS 6 -2
CHA 1 -5

Traits

Ooze Cube

The cube fills its entire space and is transparent. Other creatures can enter that space, but a creature that does so is subjected to the cube's Engulf and has Disadvantage on the saving throw.
Creatures inside the cube have Cover, and the cube can hold one Large creature or up to four Medium or Small creatures inside itself at a time.
As an action, a creature within 5 feet of the cube can pull a creature or an object out of the cube by succeeding on a DC 12 Strength () check, and the puller takes 10 () Acid damage.

Transparent

Even when the cube is in plain sight, a creature must succeed on a DC 15 Wisdom () check to notice the cube if the creature hasn't witnessed the cube move or otherwise act.

Actions

Pseudopod

Melee Attack +4, reach 5 ft. 12 () Acid damage.

Engulf

The cube moves up to its Speed without provoking . The cube can move through the spaces of Large or smaller creatures if it has room inside itself to contain them (see the Ooze Cube [Area Of Effect] trait). DEX Save DC 12, each creature whose space the cube enters for the first time during this move.
Failure: 10 () Acid damage, and the target is engulfed. An engulfed target is suffocating, can't cast spells with a Verbal component, has the condition, and takes 10 () Acid damage at the start of each of the cube's turns. When the cube moves, the engulfed target moves with it. An engulfed target can try to escape by taking an action to make a DC 12 Strength () check. On a successful check, the target escapes and enters the nearest unoccupied space.
Success: Half damage, and the target moves to an unoccupied space within 5 feet of the cube. If there is no unoccupied space, the target fails the save instead.
Confirmation

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