Sovereign Fungus

Sovereign Fungus CR 21

XP 409,600
N Colossal plant
Init +3; Senses tremorsense 240 ft., low-light vision; Perception +43

AC 37, touch 1, flat-footed 37 (–1 Dex, +36 natural, –8 size)
hp 418 (31d8+279); regeneration 10 (blight spell)
Fort +26, Ref +11, Will +19
Immune disease, plant traits

Speed 40 ft., burrow 40 ft.; earth glide
Melee 4 tentacles +32 (3d8+8/19–20 plus disease and grab)
Space 30 ft.; Reach 60 ft.
Special Attacks constrict (3d8+16), engulf (DC 41, 12d8+32 plus disease), entomb
Spell-Like Abilities (CL 20th; concentration +29)

Constant—speak with animals, speak with plants
At will—scrying (targeting a creature afflicted with sovereign spore sickness only) (DC 26)
3/day—animate plants, siege of trees (greater)
1/day—dominate monster (targeting a creature afflicted with sovereign spore sickness only, plants are not immune) (DC 28)

Str 42, Dex 9, Con 29, Int 18, Wis 28, Cha 29
Base Atk +23; CMB +47 (+51 grapple); CMD 56 (can’t be tripped)
Feats Awesome Blow, Critical Focus, Greater Bull Rush, Greater Vital Strike, Improved Bull Rush, Improved Critical (tentacles), Improved Initiative, Improved Lightning Reflexes, Improved Vital Strike, Lightning Reflexes, Power Attack, Staggering Critical, Vital Strike, Weapon Focus (tentacles)
Skills Knowledge (dungeoneering, geography, nature) +35, Perception +43, Sense Motive +40, Survival +43
Languages Common, Sylvan, Terran, Undercommon; speak with animals, speak with plants

Environment any forest
Organization solitary
Treasure standard

Disease (Ex) Sovereign spore sickness: Tentacle or spore cloud—injury or inhaled; save Fort DC 24; onset immediate; frequency 1/day; effect 1d6 ability damage to all ability scores except Constitution; cure —. The save DC is Constitution-based.
Entomb (Ex) If a sovereign fungus succeeds on a combat maneuver check to move a creature it is grappling, it can earth glide while moving that creature, pulling the creature into the earth. Unless that creature has a burrow speed or some other means of traveling through the earth surrounding it, the creature is trapped within the earth until rescued, and risks suffocation.
Spore Cloud (Su) Once every 1d4 rounds as a standard action, a sovereign fungus can release a cloud of spores in a 120-foot cone. All creatures in the area are exposed to forest rot.

The true ruler of the woods, a sovereign fungus is an enormous mass of black tendrils that borrow through rock and soil, spreading their spores far and wide. Contrary to the expectations of some, the sovereign fungus has an intellect as vast as its body and its territory, ever plotting to defend its forest home from those that would despoil it, both will and able to recruit allies as necessary.

A sovereign fungus is a reclusive creature, preferring to act through agents whenever possible. Only the mightiest of threats will provoke a sovereign fungus to involve itself directly, and battles between such threats and a sovereign fungus are the stuff of legends; cautionary legends about the dangers of daring to provoke the wrath of the forest.

Tombs of the Elder Sovereigns

As a creature with close ties to the natural world, a sovereign fungus sometimes forgets that constructs and undead exist outside the normal cycle of life. When a sovereign fungus is stirred to action against a powerful construct or undead menace, it sometimes entombs its opponent and assumes the problem is resolved, forgetting that constructs and undead are immune to the ravages of time. Over the millennia, numerous constructs and undead have been entombed by sovereign fungi that have since moved on. These dangerous evils remain imprisoned beneath the earth but otherwise unguarded, eternally awaiting their own excavation.