# [Chasme](3-Mechanics\CLI\bestiary\fiend/chasme-xmm.md)
*Source: Monster Manual (2024) p. 69*
## Chasme
*Demon of Betrayal and Sycophancy*
- **Habitat.** Planar (Abyss)
- **Treasure.** Relics
Flying forth from the Abyss, chasmes resemble horse-size flies. They incapacitate foes by producing a mind-numbing droning, then use their proboscises to drain victims of life. In the Abyss, most chasmes obsequiously serve more powerful demons and search for captives to press into demonic hordes.
```statblock
"name": "Chasme (XMM)"
"size": "Large"
"type": "fiend"
"subtype": "demon"
"alignment": "Chaotic Evil"
"ac": !!int "15"
"hp": !!int "78"
"hit_dice": "12d10 + 12"
"stats":
- !!int "15"
- !!int "15"
- !!int "12"
- !!int "11"
- !!int "14"
- !!int "10"
"speed": "20 ft., fly 60 ft."
"saves":
"Dexterity": !!int "5"
"Wisdom": !!int "5"
"skillsaves":
"Perception": !!int "5"
"damage_resistances": "cold, fire, lightning"
"damage_immunities": "poison"
"condition_immunities": "[poisoned](3-Mechanics/CLI/rules/conditions.md#Poisoned)"
"senses": "blindsight 10 ft., darkvision 120 ft., passive Perception 15"
"languages": "Abyssal; telepathy 120 ft."
"cr": "6"
"traits":
- "desc": "If the chasme dies outside the Abyss, its body dissolves into ichor, and\
\ it gains a new body instantly, reviving with all its [Hit Points](3-Mechanics/CLI/rules/variant-rules/hit-points-xphb.md)\
\ somewhere in the Abyss."
"name": "Demonic Restoration"
- "desc": "The chasme has [Advantage](3-Mechanics/CLI/rules/variant-rules/advantage-xphb.md)\
\ on saving throws against spells and other magical effects."
"name": "Magic Resistance"
- "desc": "The chasme can climb difficult surfaces, including along ceilings, without\
\ needing to make an ability check."
"name": "Spider Climb"
"actions":
- "desc": "Melee Attack Roll: +5, reach 5 ft. Hit: 16 (4d6 + 2) Piercing damage\
\ plus 21 (6d6) Necrotic damage. If the target is a creature, its [Hit Point](3-Mechanics/CLI/rules/variant-rules/hit-points-xphb.md)\
\ maximum decreases by an amount equal to the Necrotic damage taken."
"name": "Proboscis"
"bonus_actions":
- "desc": "Constitution Saving Throw: DC 12, each creature in a 30-foot [Emanation](3-Mechanics/CLI/rules/variant-rules/emanation-area-of-effect-xphb.md)\
\ originating from the chasme (demons automatically succeed on this save). Failure:\
\ The target has the [Unconscious](3-Mechanics/CLI/rules/conditions.md#Unconscious)\
\ condition and repeats the save at the end of each of its turns. The target succeeds\
\ automatically after 10 minutes or if it takes damage or a creature within 5\
\ feet of it takes an action to empty a flask of Holy Water on it. Success:\
\ The target is immune to this chasme's Drone for 24 hours."
"name": "Drone"
"source":
- "XMM"
"image": "3-Mechanics/CLI/bestiary/fiend/token/chasme-xmm.webp"
```
^statblock
## Environment
planar, abyss