Gibbering Mouther click to see monster

Size/Type: Medium Aberration
Hit Dice: 4d8+24 (42 hp)
Initiative: +1
Speed: 10 ft. (2 squares), swim 20 ft.
Armor Class: 19 (+1 Dex, +8 natural), touch 11, flat-footed 18
Base Attack/Grapple: +3/+3
Attack: Bite +4 melee (1) or spittle +4 ranged touch (1d4 acid plus blindness)
Full Attack: 6 bites +4 melee (1) and spittle +4 ranged touch (1d4 acid plus blindness)
Space/Reach: 5 ft./5 ft.
Special Attacks: Gibbering, spittle, improved grab, blood drain, swallow whole, ground manipulation
Special Qualities: Amorphous, damage reduction 5/bludgeoning, darkvision 60 ft.
Saves: Fort +7, Ref +4, Will +5
Abilities: Str 10, Dex 13, Con 22, Int 4, Wis 13, Cha 13
Skills: Listen +4, Spot +9, Swim +8
Feats: Lightning Reflexes, Weapon Finesse
Environment: Underground
Organization: Solitary
Challenge Rating: 5
Treasure: None
Alignment: Usually neutral
Advancement: 5-12 HD (Large)
Level Adjustment:

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.

Gibbering mouthers can speak Common, but seldom say anything other than gibberish.


A gibbering mouther attacks by shooting out strings of protoplasmic flesh, each ending in one or more eyes and a mouth that bites at the enemy. A mouther can send out a total of six such members in any round.

Gibbering (Su)

As soon as a mouther spots something edible, it begins a constant gibbering as a free action. All creatures (other than mouthers) within a 60-foot spread must succeed on a DC 13 Will save or be affected as though by a confusion spell for 1d2 rounds. This is a sonic mind-affecting compulsion effect. A creature that successfully saves cannot be affected by the same gibbering mouther’s gibbering for 24 hours. The save DC is Charisma-based.

Spittle (Ex)

As a free action every round, a gibbering mouther fires a stream of spittle at one opponent within 30 feet. The mouther makes a ranged touch attack; if it hits, it deals 1d4 points of acid damage, and the target must succeed on a DC 18 Fortitude save or be blinded for 1d4 rounds. Eyeless creatures are immune to the blinding effect, but are still subject to the acid damage. The save DC is Constitution-based.

Improved Grab (Ex)

To use this ability, a gibbering mouther must hit with a bite attack. It can then attempt to start a grapple as a free action without provoking an attack of opportunity.

Swallow Whole (Ex)

The gibbering mouther can attempt to swallow a grappled opponent of Medium or smaller size by making a successful grapple check. (The gibbering mouther doesn’t actually “swallow” the opponent—it engulfs it within its amorphous form—but the effect is essentially the same.) Once inside, the gibbering mouther can use its blood drain ability. A swallowed creature can cut its way out by dealing 5 points of damage to the gibbering mouther (same AC).

The gibbering mouther’s body can hold 1 Medium, 2 Small, 8 Tiny, 32 Diminutive, or 128 Fine creatures.

Blood Drain (Ex)

A swallowed opponent automatically takes 1d4 points of Constitution damage each round.

Ground Manipulation (Su)

At will, as a standard action, a gibbering mouther can cause stone and earth in all adjacent squares to become a morass akin to quicksand. Softening earth, sand, or the like takes 1 round, while stone takes 2 rounds. Anyone other than the mouther in that area must take a move-equivalent action to avoid becoming mired (treat as being pinned).

Amorphous (Ex)

A gibbering mouther is not subject to critical hits. It cannot be flanked.


Thanks to their multiple eyes, gibbering mouthers have a +4 racial bonus on Spot checks.

A gibbering mouther has a +8 racial bonus on any Swim check to perform some special action or avoid a hazard. It always can choose to take 10 on a Swim check, even if distracted or endangered. It can use the run action while swimming, provided it swims in a straight line.