Void Fungus

Medium plant, chaotic neutral

Armor Class 14 (natural armor)
Hit Points 65 (10d8 + 20)
Speed 30 ft.

15 (+2) 14 (+2) 14 (+2) 10 (+0) 16 (+3) 4 (–3)

Skills Perception +5, Stealth +4, Survival +5
Damage Vulnerabilities radiant
Damage Resistances cold, fire
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, poisoned
Senses blindsight 120 ft. (blind beyond this radius), passive Perception 15
Languages understands Common and Void Speech but can’t speak, telepathy 60 ft.
Challenge 3 (700 XP)
Proficiency Bonus +2


  • False Appearance. While the Void fungus remains motionless, it is indistinguishable from a patch of glowing fungus.
  • Illumination. The Void fungus sheds dim light in a 10-foot radius.


  • Multiattack. The Void fungus makes two Poisonous Mycelium or Psychic Blast attacks. If the Void fungus hits one creature with both Psychic Blast attacks, the target must succeed on a DC 13 Charisma saving throw or be charmed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
  • Poisonous Mycelium. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) piercing damage plus 7 (2d6) poison damage, and the target must succeed on a DC 13 Constitution saving throw or be poisoned until the end of its next turn.
  • Psychic Blast. Ranged Spell Attack: +5 to hit, range 60 ft., one target. Hit: 12 (2d8 + 3) psychic damage.
  • Consume Energy. The hair-like tendrils dangling from the Void fungus’s cap briefly flash as it draws psychic energy from a creature it can see within 30 feet of it. The target must make a DC 13 Charisma saving throw, taking 18 (4d8) psychic damage on a failed save, or half as much damage on a successful one. The fungus regains hp equal to the damage dealt.


A purple glow emanates from the translucent caps of a lavender fungus with pale strands dangling from it. The largest batch of the fungus moves, its dark mycelium reaching up beckoningly.

Void fungus is a semi-sentient cluster of phosphorescent mushrooms that psychically assault living creatures. Once their prey is helpless, they feast on their vital fluids through a fibrous mycelium network.

Mobile Fungus. Once a cluster of void fungus has been fed ample blood, one or more swollen mushrooms undergo a metamorphosis, breaking apart from the rest as a creature with enhanced power and mobility. These ambulatory Void fungi collect prey for the colony.

Alien Origins. Originating from some long-forgotten corner of the Void, the Void fungus resembles a sinister, otherworldly version of the pixie’s parasol mushroom. How their spores spread across the planes is a subject of esoteric debate. This eldritch fungus has been known to turn up in the nightmares of spellcasters, usually alongside even greater threats.

Void Fungus Hazard

Clusters of non-ambulatory Void fungi are encountered in dark places, growing in 5-foot square patches. A patch sheds dim light in a 10-foot radius. A creature that starts its turn within 30 feet of a patch must succeed on a DC 13 Charisma saving throw or be charmed for 1 minute. While charmed, the creature must move on its turn toward the fungus patch by the safest available route, trying to enter the patch’s space. Whenever the creature takes damage from a source other than a Void fungus, the creature can repeat the saving throw.

A creature can also repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to this patch’s charm for the next 24 hours. A creature that starts its turn in the same space as the fungus loses 9 (2d8) hp due to blood loss. A patch of non-ambulatory Void fungi is instantly destroyed by radiant damage or sunlight.

Section 15: Copyright Notice

Tome of Beasts 3 © 2022 Open Design LLC; Authors: Eytan Bernstein, Celeste Conowitch, Benjamin L. Eastman, Robert Fairbanks, Scott Gable, Basheer Ghouse, Richard Green, Jeremy Hochhalter, Jeff Lee, Christopher Lockey, Sarah Madsen, Ben Mcfarland, Jonathan Miley, Kelly Pawlik, Sebastian Rombach, Chelsea Steverson, Brian Suskind, Mike Welham

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