Nurikabe

A flabby beast appears in the blink of an eye, its body squared off and shifting color. It gazes at you with three eyes bearing a friendly glint, and thick black tusks protrude from its jowls.

Source Demiurge113
Originally posted on Probing the Membrane of Science

Despite their monstrous appearance, the urban creatures known as nurikabe are good hearted pranksters and guardians. Nurikabes may live in the heart of bustling cities, using their color-shifting skin to disguise themselves as small walls and buildings. Here, they annoy travelers at night with walls of force and their own impassible bodies. Due to their stony hides and their affinity for walls, some scholars believe that nurikabes were once tsukumogami that became truly alive through some unknown process.

A nurikabe requires a mix of organic and inorganic foodstuff’ rocks, soil, plants and urban animals all disappear down their ravenous gullets. They have a sweet tooth, and may steal candies or mochi from those they prank. Despite their puckish nature, they are kind-hearted, using their abilities to protect the weak and thwart the wicked. When nurikabes gather in large groups, they are usually protecting something, such as a vulnerable child hunted by dark forces or an evil artifact outside of their ability to destroy.

Although nurikabe rarely engage in direct combat, they are ferocious when fighting in defense of their charges. Their heavy paws and thick tusks can leave grievous wounds, and their mastery of force effects allows them to penetrate many forms of magical defenses. Their rocky hides turn away both blades and energy effects as if it were stone.

Nurikabe CR 9

XP 6,400 CG Large aberration Init +5; Senses darkvision 60 ft., Perception +18

Defenses

AC 21, touch 10, flat-footed 21 (-1 size, +1 Dexterity, +11 natural) hp 126 (12d8+72) Fort +12, Ref +5, Will +11 DR 10/adamantine Immune force; Resist cold 10, electricity 10, fire 10 Defensive Abilities immobile

OFFENSE

Speed 20 ft., Climb 20 ft., phase Melee 2 slams +15 (2d4+7), bite +15 (1d6+7) Space 10 ft.; Reach 5 ft. Special Attacks phasing strikes, trample (2d4+10, DC 23) Spell-like Abilities CL 12th, concentration +15 3/day – invisibility, wall of force

STATISTICS

Strength 24, Dexterity 13, Constitution 22, Intelligence 13, Wisdom 17, Charisma 16 Base Atk +9; CMB +17; CMD 28 (36 vs. trip, reposition, drag, bull’s rush) Feats Combat Expertise, Great Fortitude, Improved Initiative, Lunge, Skill Focus (Stealth), Vital Strike Skills Climb +17, Intimidate+18, Knowledge (local)+16, Perception +18, Stealth+26; Racial Modifiers +8 Stealth Languages Common, Undercommon SQ hide in plain sight

ECOLOGY

Environment urban and underground Organization solitary, foundation (2-6) or block (8-24) Treasure standard

SPECIAL ABILITIES

Hide in Plain Sight (Ex) A nurikabe can make Stealth checks even when observed and without cover and concealment.   Immobile (Ex) A nurikabe gains a +8 bonus to its CMD to avoid being moved and to stop creatures from moving through its square with the Acrobatics skill.   Phase (Su) A nurikabe can move through force effects as if it was difficult terrain. Phasing Strikes (Su) A nurikabe ignores all bonuses to AC granted by force effects, like a shield spell or bracers of armor. It can attack through a wall of force or similar effect, but it treats such attacks as being made through cover.