|This material from the 5th edition SRD is published under the OGL|
|Large ooze, unaligned|
|Armor Class: 8|
|Hit Points: 45 (5d10+12)|
|Speed: 10 ft., climb 10 ft.|
|Damage Resistances: acid|
|Damage Immunity: lightning, slashing|
|Condition Immunity: blinded, charmed, deafened, exhaustion, prone|
|Senses: blindsight 60 ft. (blind beyond this radius), passive Perception 8|
|Challenge: 2 (450 xp)|
| Amorphous. The jelly can move through a space as narrow as 1 inch wide without squeezing.
Spider Climb. The jelly can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Split. When a jelly that is Medium or larger is subjected to lightning or slashing damage, it splits into two new jellies if it has at least 10 hit points. Each new jelly has hit points equal to half the original jelly's, rounded down. New jellies are one size smaller than the original jelly.