Abyssal Maw

Abyssal Maw
CR 1 CE Outsider (extraplanar)
This squat creature has six limbs, all of which seem capable of serving equally well as arms or legs. It has mismatched eyes surrounding a gaping maw splitting its body in half, packed with a forest of teeth.
Abyssal maws are demon-like creatures that are perpetually, ravenously hungry. Their name truly describes them, as they are the maws of the Abyss itself—anything eaten by an Abyssal maw travels between planes and is deposited somewhere in the many profane corners of the Abyss. It is Abyssal maws that keep seas of blood and ichor, swamps of feces and meat, and deposits of fouler, less identifiable organic material pouring into the Abyss in such volume. An Abyssal maw will eat anything alive or dead, animal or plant, but their favorite food is anything still screaming and struggling when they get to it.
Abyssal maws are stupid creatures, and their tactics rarely advance beyond “attack the nearest, juiciest looking target”. Once they have felled an enemy, they get distracted and move onto the next one, although once the battle has calmed down they will return to and devour anyone or anything unconscious or dead on the battlefield. They do not coordinate attacks with each other, and may be baited into attacking each other by clever foes. An Abyssal maw instinctively will not attack a true demon or qlippoth (although they will scavenge from their corpses).
Most Abyssal maws roam the Abyss itself, eating weaker things that they come across, but some are found on other planes as conduits between worlds. Material Planes are their ultimate destination, and demons often transport or invite Abyssal maws across planar borders. On the Material Plane, if a powerful demon of greed or gluttony (such as a nabasu or nalfeshnee) dies, Abyssal maws disgorge themselves from its corpse and roam forth. Thus, even killing a demon might not fully stop its depredations, and Abyssal maws can be found wandering in almost any habitat. An Abyssal maw is unharmed if in an area that blocks planar travel (such as the area of a dimensional lock spell), but they grow increasingly frantic and uncomfortable, vomiting up almost all that they eat.
Abyssal maws can understand Abyssal and even attempt to speak it, but their mismatched teeth and lolling tongues render their speech unintelligible even to demons.
Abyssal Maw CR 1
XP 400
CE Medium outsider (chaos, evil, extraplanar)
Init +3; Senses all-around vision, darkvision 60 ft., Perception +4
Defense
AC 13, touch 9, flat-footed 13 (-1 Dex, +4 natural)
hp 13 (2d10+2)
Fort +4, Ref -1, Will +2
Immune charm effects, fear, poison; Resist cold 10, electricity 10, fire 10
Offense
Speed 30 ft.
Melee bite +4 (1d8+3)
Special Attacks rampage
Statistics
Str 14, Dex 9, Con 13, Int 5, Wis8, Cha 8
Base Atk +2; CMB +4; CMD 13 (15 vs. trip)
Feats Improved Initiative
Skills Climb +6, Perception +4, Stealth +4, Swim +6
Languages Abyssal (cannot speak)
Ecology
Environment any land or underground (Abyss)
Organization solitary, pair, troop (3-8) or ravage (9-20)
Treasure incidental
Special Abilities
Rampage (Ex) When an abyssal maw reduces a creature to 0 hit points or fewer with its bite attack, it may move up to half its speed and make another bite attack as an immediate action. This movement does not provoke attacks of opportunity.