SRD5:Gibbering Mouther

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Gibbering Mouther exists in other D&D editions see:

Gibbering Mouther (disambiguation).

This material from the 5th edition SRD is published under the OGL and CC-BY
Gibbering Mouther [SRD5 OGL/CC-BY] [1] [2] [3]

[4] [5]

Medium Aberration, Neutral
Armor Class: 9
Hit Points: 67 (9d8+27)
Speed: 10 ft., swim 10 ft.
10 (+0) 8 (-1) 16 (+3) 3 (-4) 10 (+0) 6 (-2)
Condition Immunity: prone
Senses: darkvision 60 ft., passive Perception 10
Habitat: Underdark, Underground
Challenge: 2 (450 xp)Proficiency Bonus (PB): +2


Aberrant Ground. The ground in a 10-foot radius around the mouther is doughlike difficult terrain. Each creature that starts its turn in that area must succeed on a DC 10 Strength saving throw or have its speed reduced to 0 until the start of its next turn.

Gibbering. The mouther babbles incoherently while it can see any creature and isn't incapacitated. Each creature that starts its turn within 20 feet of the mouther and can hear the gibbering must succeed on a DC Wisdom saving throw. On a failure, the creature can't take reactions until the start of its next turn and rolls a d8 to determine what it does during its turn.

1-4 The creature does nothing.
5-6 The creature takes no action or bonus action and uses all its movement to move in a randomly determined direction.
7-9 The creature makes a melee attack against a randomly determined creature within its reach or does nothing if it can't make such an attack. 


Multiattack. The gibbering mouther makes one bite attack and, if it can, uses its Blinding Spittle.

Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 17 (5d6) piercing damage. If the target is medium or smaller, it must suceed on a DC 10 Strength saving throw or be knocked prone. If the target is killed by this damage, it is absorbed into the mouther.

Blinding Spittle (Recharge 5-6). The mouther spits a chemical glob at a point it can see within 15 feet of it. The glob explodes in a blinding flash of light on impact. Each creature within 5 feet of the flash must succeed on a DC 13 Dexterity saving throw or be blinded until the end of the mouther's next turn.

End of the SRD5 material

Unofficial Description: Ooze-like aberration with dozens of eyes and mouths.

 3.5e lore  [SRD3 OGL] [6] 
A gibbering mouther is a horrible creature seemingly drawn from a lunatic’s nightmares. Although not evil, it thirsts after bodily fluids and seems to prefer the blood of intelligent creatures. A gibbering mouther is about 3 feet across and 3 to 4 feet high. It weighs about 200 pounds.

Sources and Notes[edit]

  1. Wizards RPG Team (6 May 2015). SRD-OGL v5.1. (5e) Wizards of the Coast. Licensed: OGL & CC-BY.
  2. also published in — Wizards RPG Team (September 2014). Monster Manual. (5e) Wizards of the Coast. ISBN 978-0786965618. p. 157.
  3. Habitat — Not part of the SRD5.
  4. habitat - Dungeon Master's Guide (5e) p.302-305
  5. habitat (Underground) - user:Rlyehable (unofficial)
  6. Wizards RPG Team (2000). SRD v3.5. (3.5e) Wizards of the Coast. Licensed: OGL.

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Facts about "Gibbering Mouther"
AlignmentNeutral +
AuthorSRD5 +
CRval2 +
Canontrue +
Challenge Rating2 +
Creature NameGibbering Mouther +
Experience Points450 +
FeaturesAberrant Ground +, Gibbering +, Multiattack +, Bite + and Blinding Spittle +
HabitatUnderdark + and Underground +
Hit Dice9d8+27 +
Hit Points67 +
NameGibbering Mouther +
PublicationSRD5 +
SizeMedium +
SortTextGibbering Mouther 5e +
SummaryOoze-like aberration with dozens of eyes and mouths. +
TitleGibbering Mouther +
TypeAberration +