Jelly, Mustard

Family: Oozes

Large ooze, unaligned

Armor Class 14 (natural armor)
Hit Points 136 (13d10 + 65)
Speed 30 ft.

15 (+2) 10 (+0) 21 (+5) 10 (+0) 10 (+0) 10 (+0)

Skills Perception +6, Stealth +6
Damage Resistances cold
Damage Immunities force, lightning, poison
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, poisoned
Senses blindsight 60 ft. (blind beyond this radius), passive Perception 16
Challenge 6 (2,300 XP)

Special Traits

  • Amorphous. The mustard jelly can move through a space as narrow as 1 inch wide without squeezing.
  • Energy Absorption. A mustard jelly is immune to force and lightning damage. If the jelly would have taken force or lightning damage, it is instead healed for the same amount it would have taken in damage.
  • Magic Weapons. The mustard jelly’s attacks are magical.
  • Spider Climb. The mustard jelly can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
  • Poison Aura. At the start of each of the mustard jelly’s turns, each creature within 10 feet of it takes 10 (3d6) poison damage. A creature that touches the jelly or hits it with a melee attack while within 5 feet of it takes 10 (3d6) poison damage.


  • Pseudopod. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (3d6 + 2) bludgeoning damage and 10 (3d6) acid damage.
Section 15: Copyright Notice

Rappan Athuk © 2018, Frog God Games, LLC; Authors Bill Webb, Clark Peterson, Skeeter Green, Tom Knauss, Lance Hawvermale, WDB Kenower, Casey Christofferson, and Greg Raglund; based on the original creation of Bill Webb.

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