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Template Grafts | Universal Monster Rules

Magma Ooze

Source Starfinder #16: The Blind City pg. 56

Magma Ooze CR 7

XP 3,200
N Large ooze (fire)
Init -2; Senses blindsight (vibration) 60 ft., sightless; Perception +14


HP 120
EAC 18; KAC 19
Fort +11; Ref +7; Will +4
Defensive Abilities molten body, split; Immunities fire, ooze immunities
Weaknesses petrified by water, vulnerable to cold


Speed 20 ft., climb 20 ft.
Melee slam +16 (2d6+12 B & F plus grab; critical burn 1d6)
Ranged hurl magma +14 (2d6+7 B & F; critical burn 1d6)
Space 10 ft.; Reach 10 ft.


STR +5; DEX -2; CON +4; INT —; WIS +2; CHA -4
Skills Athletics +14 (+22 to climb)
Other Abilities mindless


Environment any underground
Organization solitary

Special Abilities

Hurl Magma (Su) A magma ooze can hurl magma at a range increment of 20 feet to a maximum range of 100 feet.

Molten Body (Su) Any melee weapon striking the magma ooze takes 2d6 fire damage, ignoring hardness. If the weapon’s wielder fails a DC 15 Reflex save, the weapon gains the burning condition, which deals 1d6 fire damage that ignores hardness.

Petrified by Water (Ex) When exposed to a least 1 bulk of water, such as in heavy rain or a pool, the magma ooze is staggered for 1 round. A magma ooze is also staggered for 1 round if it starts its turn in such conditions. A magma ooze staggered in this way for 5 or more consecutive rounds becomes petrified. It remains petrified until the source of the petrification is removed and the ooze succeeds at a DC 20 Fortitude saving throw, which it can attempt at the end of each of its turns.

Split (Ex) If a magma ooze takes cold damage, provided it has at least 12 Hit Points remaining, it splits into two oozes. The new magma ooze appears in an adjacent unoccupied space. If there is no such free space, the ooze doesn’t split. Each ooze has half the original’s remaining Hit Points. The new ooze acts just after the original ooze in the initiative order.


Magma oozes are living pools of bubbling molten rock that churn and move of their own accord. They can be found on the Plane of Earth and the Plane of Fire. On the Material Plane, they arise spontaneously from planar influences or bizarre magic, usually in the vicinity of volcanoes. Magma oozes have also been known to form when molten rock is suddenly pulled into the Drift.

A magma ooze has an extraordinarily high body temperature. An agitated magma ooze can jettison chunks of its superheated mass as projectiles of burning rock and protoplasm.

Although mindless, a magma ooze instinctively avoids water and extreme cold. Cold causes the ooze to split, while water causes its body to harden. Prolonged periods of submersion might even harden the ooze’s surface into a stiff shell, rendering the creature totally immobile until it emerges and becomes molten once more.

A typical magma ooze is 10 feet wide when its body is spread 6 inches thick. It weighs 2 tons.