# [Gas Spore Fungus](Rules\Source\bestiary\plant/gas-spore-fungus-xmm.md) *Source: Monster Manual (2024) p. 125* Gas spores are floating, orbicular fungi with rhizome growths and protuberances that resemble the stalks and eyes of beholders. If destroyed, a gas spore explodes in a poisonous burst that can infect creatures and slay them in hours. Infected corpses spawn more gas spores that grow to full size in a matter of days. ## Fungi *Deadly Spores and Predatory Polyps* - **Habitat.** Underdark - **Treasure.** None The dank, sunless Underdark is a fertile breeding ground for weird and dangerous fungi. ```statblock "name": "Gas Spore Fungus (XMM)" "size": "Large" "type": "plant" "alignment": "Unaligned" "ac": !!int "8" "hp": !!int "13" "hit_dice": "9d10 - 36" "modifier": !!int "-5" "stats": - !!int "5" - !!int "1" - !!int "3" - !!int "1" - !!int "1" - !!int "1" "speed": "5 ft., fly 10 ft. (hover)" "damage_immunities": "poison" "condition_immunities": "[blinded](/Rules/Source/conditions.md#Blinded), [charmed](/Rules/Source/conditions.md#Charmed),\ \ [deafened](/Rules/Source/conditions.md#Deafened), [frightened](/Rules/Source/conditions.md#Frightened),\ \ [paralyzed](/Rules/Source/conditions.md#Paralyzed), [poisoned](/Rules/Source/conditions.md#Poisoned),\ \ [prone](/Rules/Source/conditions.md#Prone)" "senses": "[Blindsight](/Rules/Source/senses.md#Blindsight) 30 ft., passive Perception\ \ 5" "languages": "" "cr": "1/2" "traits": - "desc": "The gas spore bursts when it dies. *Constitution Saving Throw:* DC 10,\ \ each creature in a 20-foot [Emanation](/Rules/Source/variant-rules/emanation-area-of-effect-xphb.md)\ \ originating from the gas spore. *Failure:* The target takes 10 (3d6) Poison\ \ damage and has the [Poisoned](/Rules/Source/conditions.md#Poisoned) condition\ \ for 1d12 hours. Unless the [Poisoned](/Rules/Source/conditions.md#Poisoned)\ \ condition is removed, the target dies at the end of that time and sprouts\ \ 2d4 Tiny Gas Spore Fungi (each with 1 [Hit Point](/Rules/Source/variant-rules/hit-points-xphb.md)).\ \ After 2d6 days, they become Large and have 13 [Hit Points](/Rules/Source/variant-rules/hit-points-xphb.md)." "name": "Death Burst" "actions": - "desc": "*Melee Attack Roll:* +0, reach 5 ft. *Hit:* 3 (1d6) Poison damage, and\ \ the target has the [Poisoned](/Rules/Source/conditions.md#Poisoned) condition\ \ until the end of its next turn." "name": "Tendril" "source": - "XMM" "image": "/Rules/Source/bestiary/plant/token/gas-spore-fungus-xmm.webp" ``` ^statblock ## Environment underdark