Black Patch 2014
CR 6 ooze
Large ooze, unaligned
Can breathe air and water.
When a creature that can see the patch starts its turn within 90' of it patch can force it to make a DC 15 Wis save if ooze isn’t incapacitated and can see the creature. Fail: creature is mesmerized 1 min. Mesmerized creature over 5 ft. away from patch must move on its turn toward ooze by most direct route trying to get within 5 feet. It doesn’t avoid opportunity attacks but before moving into damaging terrain such as lava or a pit and whenever it takes damage from a source other than ooze target can re-save. Mesmerized target can also re-save at end of each of its turns success ends effect on itself. If creature’s save succeeds or effect ends for it is immune to patch's Eldritch Luminance for next 24 hrs.
Can enter hostile creature’s space and stop there. It can move through a space as narrow as 1ft. wide with o squeezing.
Doesn’t require sleep.
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details