Gibbering mouthers can speak Common, but seldom say anything
other than gibbering.
Gibbering mouthers attack 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 at a
Will save (DC 13) or be affected as though by a confusion spell
for 1d2 rounds. This is a sonic, mind-affecting compulsion
effect. Opponents who successfully save cannot be affected by the
same gibbering mouther's gibbering for one day.
Spittle (Ex): At the start of every combat, and every 2 rounds
thereafter, a gibbering mouther looses a stream of spittle. This
ignites on contact with the air, creating a blinding flash of
light. All sighted creatures within 60 feet must succeed at a
Fortitude save (DC 13) or be blinded for 1d3 rounds.
Improved Grab (Ex): To use this ability, the gibbering mouther
must hit with a bite attack.
Blood Drain (Ex): On a second successful grapple check after
grabbing, that mouth attaches to the opponent. It automatically
deals bite damage and drains blood, dealing 1 point of temporary
Constitution damage each round. A mouth can be ripped off
(dealing 1 point of damage) with a successful Strength check (DC
12) or severed by a normal attack that deals at least 2 points of
damage (AC 18). A severed mouth continues to bite and drain blood
for 1d4 rounds after such an attack. A creature whose
Constitution is reduced to 0 is killed and absorbed by the
mouther, which gains 1 hit point and adds another mouth and pair
of eyes to its body.
Engulf (Ex): A gibbering mouther can try to engulf a
Medium-size or smaller opponent grabbed by three or more mouths.
The opponent must succeed at a Reflex save (DC 14) or fall and be
engulfed. On the next round, the mouther makes twelve bite
attacks instead of six (each with a +4 attack bonus). An engulfed
creature cannot attack the mouther from within. The previously
attached mouths are now free to attack others.
Ground Manipulation (Su): At will, as a standard action, a
gibbering mouther can cause stone and earth within 5 feet of it
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 has no clear front or back, so it cannot be flanked.
Skills: Thanks to their multiple eyes, gibbering mouthers
receive a +4 racial bonus to Spot checks.