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Magma Worm

Creature 18 (rare) — beast, fire

Among the most dangerous of their kind are the fiery magma worms. In addition to being even larger than benthic worms, the magma worm has a penchant for burrowing through volcanic regions that, over the generations, have infused it with a supernatural link to the Elemental Plane of Fire. The fiery heart of an active volcano is an attractive lair for a magma worm, as are the sprawling fields of molten rock found in the deepest reaches of the Darklands. Legends of ancient dwarven societies and col

Source: pathfinder-monster-core

Perception +25
Skills athletics +38
Str
+10
Dex
-1
Con
+9
Int
-3
Wis
-1
Cha
-1
AC 40 Fort +36 Ref +25 Will +27
HP 410
Immunities fire
Weaknesses cold 15
Speed 40 feet, burrow 40 feet, swim 20 feet

Offense

Melee Jaws +36, Damage 3d10+18 piercing plus 2d6 fire
Melee Stinger +36, Damage 2d12+18 piercing plus 2d6 fire
Melee Body +34, Damage 2d10+16 bludgeoning plus 2d6 fire

Abilities

Tremorsense (Imprecise) 100 feet — Tremorsense
Fire Healing — As long as a magma worm is in contact with a fire or body of magma at least as large as itself, it gains fast healing 20. When struck by a magical fire effect from anything other than itself, a magma worm regains Hit Points equal to half the fire damage the effect would otherwise deal.
Inexorable — The magma worm recovers from the Paralyzed, Slowed, and Stunned conditions at the end of its turn. It's also immune to penalties to its Speeds and the Immobilized condition, and it ignores difficult terrain and greater difficult terrain.
Slough Skin — Frequency once per day Trigger The magma worm would be affected by a condition or adverse effect (such as Cursed Metamorphosis) Effect The magma worm negates the triggering condition or effect by sloughing an outer layer of its skin. Effects from artifacts, deities, or a similarly powerful source can't be avoided in this way.
Fast Swallow
Fire Breath (fire, primal) — The magma worm breathes a blast of flame in a 60-foot cone that deals 18d6 fire damage to all creatures in the area (DC 41 Reflex save). It can't use Fire Breath again for 1d4 rounds.
Magma Worm Venom (poison) — Saving Throw DC 41 Fortitude Maximum Duration 6 rounds Stage 1 1d6 poison damage and Drained 1 (1 round) Stage 2 2d6 poison damage and drained 1 (1 round) Stage 3 2d6 poison damage and Drained 2 (1 round).
Rock Tunneler — A magma worm can burrow through solid stone at a Speed of 20 feet. It can leave a tunnel if it desires, and it usually does.
Swallow Whole (attack) — Huge, 3d10+10 bludgeoning plus 2d6 fire, Rupture 36 Swallow Whole
Thrash — The worm makes a Strike once against each creature in its reach. It can Strike up to once with its jaws, up to once with its stinger, and any number of times with its body. Each attack counts toward the worm's multiple attack penalty, but the multiple attack penalty doesn't increase until after it makes all the attacks.
Improved Grab — Improved Grab

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