Ooze, Sinkhole

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

Hollow Cylindrical Form (Stretched Body Only). Creatures can occupy space in center of cylinder formed by the ooze and each such space is always within ooze's reach regardless of cylinder's size.

Ooze Nature. The sinkhole ooze doesn't require sleep.

Seizing Pseudopods. Can have up to 6 tendril-like Pseudopods at a time. Each can be attacked (AC 10; 10 hp; immunity to acid poison and psychic). Destroying Pseudopod deals no damage to ooze which can extrude a replacement on its next turn. Pseudopod can also be broken if creature takes an action and makes DC 14 Str check.

Slimy Appearance (Stretched Body Only). While it remains motionless is indistinguishable from interior of the pit or hole in the ground it is stretched across though interior walls appear wet.

Spider Climb. Difficult surfaces even ceilings no ability check.

Multiattack. Two Pseudopod attacks.

Pseudopod. Melee Weapon Attack: +6 to hit, 15 ft., one creature,. 9 (1d10+4) bludgeoning damage + 3 (1d6) acid and target is grappled (escape DC 14). Until this grapple ends target is restrained and takes 3 (1d6) acid at start of each of its turns and ooze can't use same Pseudopod on another target.

Stretch Body. Stretches body around inner walls of a pit sinkhole or other circular opening in the ground. Stretched this way it forms a hollow cylinder up to 25 ft. tall up to 25 ft. radius. Ooze can end stretch as a bonus action occupying nearest unoccupied space to the hole.

Pluck (Stretched Body Only). When 1+ creature falls down center of its cylinder can try to grab up to 2 of them. Each must make DC 14 Dex save or grappled (escape DC 14) in Pseudopod.