From Pathfinder Bestiary 3, which isn't enabled.

Sturzstromer

CREATURE 19

Cobble mites that remain a cohesive swarm for many years become dangerous living landslides.

Cobble mites resemble squarish stones a few inches across with mouths like split geodes. Though indolent and harmless alone, they're dangerous in large groups.

Perception +33; tremorsense 120 feet, tremorsense (imprecise) 240 feet

Languages Petran

Skills Athletics +37, Stealth +35

Str +8, Dex +10, Con +8, Int -1, Wis +6, Cha +2

Tremorsense (Precise) 120 feet, (Imprecise) 240 feet

A sturzstromer's tremorsense is a precise sense out to 120 feet and an imprecise sense out to 240 feet. A sturzstromer can't sense anything beyond the range of its tremorsense.

Tremorsense allows a monster to feel the vibrations through a solid surface caused by movement. It is an imprecise sense with a limited range (listed in the ability). Tremorsense functions only if the monster is on the same surface as the subject, and only if the subject is moving along (or burrowing through) the surface.

Clutching Stones

The sturzstromer's space is greater difficult terrain.

AC 41; Fort +33, Ref +35, Will +29

HP 280; Immunities precision, swarm mind, visual; Weaknesses area damage 12, splash damage 12; Resistances piercing 20, slashing 20

Speed 50 feet, burrow 20 feet

Primal Innate Spells DC 41, attack +33; 10th Earthquake; 8th Earthquake (×3), Stone Tell, Earthbind (At Will)

Grasping Bites (attack)

The sturzstromer attempts an Athletics check and compares the result to the Fortitude DC of each creature in its space. This counts as two attacks for the sturzstromer's multiple attack penalty.

Critical Success The creature is Grabbed, takes 1d6 bludgeoning damage, and is Restrained until the end of the sturzstromer's next turn.

Success The creature is grabbed.

Landslide

Requirements The sturzstromer's most recent action was to cast Earthquake.

Effect The sturzstromer closes a fissure it made, choosing one creature that fell in. That creature must succeed at a DC 41 Reflex save or be buried as in an avalanche.

Pummeling Assault

Each foe in the sturzstromer's space takes 4d10 bludgeoning damage (DC 41 basic Reflex save).

Pathfinder Bestiary 3OGL