Mythic Mu Spore

Mythic Mu Spore CR 26/MR 10

XP 2,459,600
CN Colossal plant (mythic, mythos)
Init +13/-7, dual initiative; Senses blindsight 240 ft., low-light vision; Perception +43


AC 47, touch 1, flat-footed 47 (–1 Dex, +46 natural, –8 size)
hp 529 (31d8+390); fast healing 20
Fort +27, Ref +11, Will +19; second save
DR 20/epic; Defensive Abilities fungal slough, grasping tendrils, thermophilic fungus; Immune acid, plant traits; Resist cold 10, fire 10; SR 37


Speed 40 ft., fly 30 ft. (perfect)
Melee bite +35 (6d6+20/19–20 plus grab), 4 tentacles +34 (3d8+10/19–20 plus grab)
Space 30 ft.; Reach 30 ft. (60 ft. with tentacles)
Special Attacks constrict (3d8+30), engulf (DC 45, 4d8 acid and mold infusion) , fast swallow, mold infusion, mythic power (10/day, surge +1d12), spore cough, swallow whole (20d8 acid damage, AC 33, 52 hp)


Str 50, Dex 9, Con 31, Int 18, Wis 28, Cha 29
Base Atk +23; CMB +51 (+60 bull rush, +55 grapple); CMD 60 (67 vs. bull rush, can’t be tripped)
Feats Awesome Blow, Critical Focus, Greater Bull Rush, Greater Vital Strike, Improved Bull Rush, Improved Critical (bite), Improved Critical (tentacles), Improved Initiative, Improved Vital Strike, Lightning Reflexes, Multiattack, Power Attack, Quick Awesome Blow, Staggering Critical, Stunning Critical, Vital Strike, Weapon Focus (tentacles)
Skills Fly +33, Knowledge (dungeoneering) +35, Knowledge (geography) +35, Knowledge (nature) +35, Perception +43, Sense Motive +40
Languages Aklo, Common, Terran, Undercommon; telepathy 30 miles (plants and plant creatures only)
SQ communion with the green, unstoppable titan


Communion with the Green (Sp)

A mythic mu spore can communicate with all plants and plant creatures within 30 miles telepathically, as if using continuous speak with plants at that range. It may also spend one use of mythic power to use commune with nature as a spell-like ability, two uses for plant shape III, or three uses for shambler (caster level 31st). A mythic mu spore can expend mythic power to duplicate the mythic or augmented versions of these spells using its mythic rank as its tier.

Fungal Slough (Ex)

Much of a mythic mu spore’s mass is comprised of sheets and layers of mycelial mats that drape over the creature, hiding its actual body mass. As a result, any touch attack (including ranged touch attacks), critical hit, or precision-based damage is 50% likely to be negated, striking these mats rather than the mythic mu spore itself. When a critical hit is confirmed against it, a mythic mu spore may spend one use of its mythic power as an immediate action to treat it as a normal hit.

Grasping Tendrils (Ex)

Sticky, arm-length tendrils cover a mu spore. A mu spore can use these tendrils to make a combat maneuver check as an immediate action to grapple an adjacent creature that hits the mu spore with a melee attack. As it is only using the tendrils (instead of conducting the grapple normally), it takes a –20 penalty to its CMB to make and maintain the grapple (+35 CMB with tendrils). The mu spore does not gain the grappled condition while grappling a creature with its tendrils.

Mold Infusion (Ex)

Creatures engulfed, grappled, or swallowed by a mythic mu spore are exposed each round to mythic brown, russet, or yellow mold. The spore can select different molds for each target, and can alter its mold selections as a swift action.

Spore Cough (Su)

Once every 1d4 rounds as a standard action, a mu spore can release a cloud of burrowing spores in a 100-foot cone. The burrowing spores deal 20d8 points of damage to all creatures and wooden structures in the area, or half damage to any creatures that make a DC 35 Reflex save. Plants and plant creatures are immune to this damage. The save DC is Constitution-based.

Thermophilic Fungus (Ex)

Each time a mythic mu spore takes cold or fire damage that exceeds its energy resistance, its cold or fire resistance (as appropriate) increases by 10 for 1 hour.

These increases stack each time it takes cold or fire damage.

Unstoppable Titan (Ex)

A mythic mu spore can move through difficult terrain and the space of Huge or smaller creatures without hindrance, and Huge or smaller creatures can likewise move through its space without impediment (although such movement provokes an attack of opportunity). It cannot be flanked except by Huge or larger creatures. A mythic mu spore is immune to ability damage, ability drain, temporary ability penalties, and effects that would cause it to become entangled, exhausted, fatigued, or staggered.


Environment any
Organization solitary or pair
Treasure standard

Tentacles and eyes cover this floating, fungoid monster, and its vast mouth opens like a toothy cavern.

A mu spore is a thankfully rare plant of vast power and strange intellect. The smallest of mu spores (such as the one presented here) are never less than a hundred feet long from tentacle tip to tentacle tip and weigh a minimum of 200,000 pounds. They are covered in tentacles and eyes, with a vast mouth opening like a toothy cavern. Yet despite their vast bulk, mu spores are capable of flying with an uncommon grace, venting jets of foul-smelling spores to guide their flight through the air or even though space, able to hold their breath for long periods when flying through the void.

Mu spores dwell in vast caverns, but sometimes drift up to the surface through immense pits or tunnels—they have no fear of sunlight but prefer nocturnal habits. Mu spores are more than just ravenous eaters of nations—they possess uncommon intellects, and if peaceful contact can be made, their knowledge can be quite valuable. Even more valuable, to many debased alchemists, are the strange secretions and spores they emit, for these rare materials can be brewed into the strangest of drugs and elixirs.

Mu spores dwell in vast caverns, their pallid underbellies glowing softly to give the eerie impression of a strangely shaped “moon” adrift near the darkened ceiling so far above. Caverns can be faintly lit by this illumination—an unnerving sight for any traveler not expecting light in such a lightless realm..

Section 15: Copyright Notice

Mythos Monsters (PF1) © 2022, Legendary Games; Authors Jason Nelson, Jim Groves, Jonathan Keith, Tom Phillips, Alistair J. Rigg, and Greg A. Vaughan

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