Fantasy Monster: Crushing Sphere

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Crushing Sphere

A massive orb of polished obsidian, griddled in the middle with a belt of metal etched with arcane symbols that stays in its place even as the sphere rolls forward.

CR 10; XP 9,600
N Gargantuan Construct

Init +8; Senses darkvision 60 ft., low-light vision, tremorsense 100 ft.; Perception +0

Defense
AC 24, touch 14, flat-footed 16 (+8 Dex, +10 natural, –4 size)
hp 126 (12d10+60)
Fort +4; Ref +12; Will +4

Defensive Qualities hardness 20; Immune construct traits

Offense
Speed 50 ft.

Space 20 ft.; Reach 5 ft.

Special Attacks crushing roll (DC 21, 12d6), double damage against immobile obstacles and structures

Statistics
Str 20, Dex 26, Con —, Int —, Wis 11, Cha 1
Base Atk +12; CMB +21; CMD 39 (can't be tripped)

Skills Acrobatics +8, Perception +0

Ecology
Environment urban, ruins, hills
Organization solitary or pair
Treasure standard

Special Abilities

Crushing Roll (Ex) A crushing sphere can roll over Large or smaller creatures and obstacles while moving, running or charging and ignores most of difficult terrains. Creatures or objects moved over suffer 12d6 points of damage, though creatures capable of acting can choose to either attempt an attack of opportunity against the crushing sphere, or attempt a Reflex saving throw (DC 21) to negate the damage. When the crushing sphere bumps into a Huge or larger creature or obstacle, it deals 12d6 points of bludgeoning damage and stops in its tracks (a successful Reflex saving throw halves this damage). Each creature suffers crushing roll damage only once per turn, even if the sphere's trail goes over them multiple times. The saving throw DC is Strength-based.

The initial design for the crushing sphere probably assumed it will be used as some sort of grain or ore mill, until it was upscaled into an monstrous grinding machine capable of flattening huts, breaching walls, and squashing enemies.

A crushing sphere moves under its own power, in a slightly wobbly trajectory, and can roll uphill (though it might treat particularly angled slopes as one of the few types of difficult terrain that can hinder it) to the painful surprise of those who would try to escape it that way. Its massive size also belies its speed and maneuverability.

Constructing crushing sphere

The creation process requires procuring a massive sphere of obsidian costing 10,000 gp.

CL 20th; Price 60,000 gp

Requirements Craft Construct, move earth, telekinetic sphere; Skill Craft (sculpture); DC 25; Cost 35,000 gp.