Ooze Chlime. The chlime takes up its entire space. Other creatures can enter the space, but a creature that does so is subjected to the chlime's Engulf and has disadvantage on the saving throw.

Creatures inside the chlime can be seen but have total cover.

A creature within 5 feet of the chlime can take an action to pull a creature or object out of the chlime. Doing so requires a successful DC 15 Strength check, and the creature making the attempt takes 5 (1d10) acid damage.

The chlime can hold only one Medium creature, two Small creatures or up to four Tiny creatures inside it at a time.

Transparent. Even when the chlime is in plain sight, it takes a successful DC 15 Wisdom (Perception) check to spot a chlime that has neither moved nor attacked. A creature that tries to enter the chlime's space while unaware of the chlime is surprised by the chlime.

Keen Smell. The cat has advantage on Wisdom (Perception) checks that rely on smell.

Claws. Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit:  5 (1d6+2) slashing damage plus 5 (1d10) acid damage.

Engulf. The chlime moves up to its speed. While doing so, it can enter Medium or smaller creatures' spaces. Whenever the chlime enters a creature's space, the creature must make a DC 15 Dexterity saving throw.

On a successful save, the creature can choose to be pushed 5 feet back or to the side of the chlime. A creature that chooses not to be pushed suffers the consequences of a failed saving throw.

On a failed save, the chlime enters the creature's space, and the creature takes 5 (1d10) acid damage and is engulfed. The engulfed creature can't breathe, is restrained, and takes 10 (2d10) acid damage at the start of each of the chlime's turns. When the chlime moves, the engulfed creature moves with it.

An engulfed creature can try to escape by taking an action to make a DC 15 Strength check. On a success, the creature escapes and enters a space of its choice within 5 feet of the chlime.