blob-of-annihilation-xmm

Blob of Annihilation

Source: Monster Manual (2024) p. 47, Eberron: Forge of the Artificer

Blob of Annihilation

All-Consuming Cosmic Entropy Unleashed

• Habitat. Any
• Treasure. Any

The blob of annihilation is a coagulation of cosmic entropy conjoined to the remains of dead gods. This malicious entity drifts through Wildspace and multiversal expanses inimical to life—vast regions where the chance of encountering it is low.

The blob poses the greatest threat when disasters or nihilistic magic-users summon it to inhabited realms. Once unleashed, the blob of annihilation rolls across the land in vast, cosmic gyres, with fragments of the blob splitting off to engulf targets. The blob consumes anything it encounters, sweeping forests, villages, and fortresses into its mass. Within the blob is an expanse without air or gravity where entropic forces destroy whatever they engulf. Nothing can survive within for long.

Only magic items and the corpses of gods and titans can endure inside the blob. Because of that fact, treasure hunters and theologians sometimes give themselves the deadly task of trying to retrieve something from within the blob. This quest usually ends in annihilation, but occasionally it results in the find of a lifetime.

When the blob appears, roll on or choose a result from the Blob of Annihilation Contents table to inspire what extraordinary thing remains within its goop.

A quote from Vi, Artificer of Eberron

Honey, I’ve seen horrors that would make you shit your drawers and reach for the nearest drink. And then there’s the blob of annihilation. If you see it, run. And if you can’t get away from it, just hope you dissolve fast.

Blob of Annihilation Contents

dice: [](blob-of-annihilation-xmm.md#^blob-of-annihilation-contents)

dice: 1d10	The Blob Contains…
1	An Amulet of the Planes.
2	An Artifact of the DM’s choice.
3	The corpses of two gods who were entangled in battle when the blob consumed them.
4	A Cubic Gate.
5	A Deck of Many Things.
6	A magic key that opens a door in Sigil that no other key and no spell can open.
7	The preserved corpse of an empyrean.
8	The remains of half a kraken.
9	The skull of a death god.
10	A tarrasque that just died.
^blob-of-annihilation-contents

"name": "Blob of Annihilation (XMM)"
"size": "Gargantuan"
"type": "ooze"
"subtype": "titan"
"alignment": "Neutral Evil"
"ac": !!int "18"
"hp": !!int "448"
"hit_dice": "23d20 + 207"
"modifier": !!int "16"
"stats":
  - !!int "27"
  - !!int "14"
  - !!int "28"
  - !!int "10"
  - !!int "16"
  - !!int "10"
"speed": "30 ft."
"saves":
  - "dexterity": !!int "9"
  - "constitution": !!int "16"
"damage_resistances": "bludgeoning, piercing, slashing"
"damage_immunities": "acid, necrotic, poison"
"condition_immunities": "charmed, exhaustion, frightened, grappled, paralyzed, petrified,\
  \ poisoned, prone, restrained, stunned, unconscious"
"senses": "Blindsight 120 ft., passive Perception 13"
"languages": ""
"cr": "23"
"traits":
  - "desc": "If the blob is reduced to 0 <span title=\"Player's Handbook (2024)\"\
      >Hit Points</span>, it implodes and ejects any creatures and objects engulfed\
      \ by it into the Astral Sea. The blob itself vanishes, leaving behind a layer\
      \ of slime on everything that was within 600 feet of it. In 1d20 years, the\
      \ blob reconstitutes on a random world in the Material Plane."
    "name": "Astral Implosion"
  - "desc": "If the blob fails a saving throw, it can choose to succeed instead."
    "name": "Legendary Resistance (4/Day)"
  - "desc": "The blob has <span title=\"Player's Handbook (2024)\">Advantage</span>\
      \ on saving throws against spells and other magical effects."
    "name": "Magic Resistance"
"actions":
  - "desc": "The blob makes two Pseudopod attacks and uses Engulf. It can replace\
      \ one attack with a use of Restraining Glob."
    "name": "Multiattack"
  - "desc": "*Melee Attack Roll:* +15, reach 30 ft. *Hit:* 24 (3d10 + 8) Force damage."
    "name": "Pseudopod"
  - "desc": "The blob moves up to its <span title=\"Player's Handbook (2024)\">Speed</span>\
      \ and can move through the spaces of Huge or smaller creatures and objects.\
      \ *Strength Saving Throw:* DC 23, each creature or object whose space the blob\
      \ enters for the first time during this move. *Failure:* The target is engulfed.\
      \ While engulfed, a target has <span title=\"Player's Handbook (2024)\">Total\
      \ Cover</span> against attacks and other effects outside the blob, and when\
      \ the blob moves, the engulfed target moves with it. A nonmagical object is\
      \ destroyed after spending 1 minute engulfed.\n\nWhile engulfed, a creature\
      \ takes 21 (6d6) Force damage at the start of each of its turns, is suffocating,\
      \ has the Restrained condition, and repeats the save at the end of each of its\
      \ turns. An engulfed creature that is reduced to 0 <span title=\"Player's Handbook\
      \ (2024)\">Hit Points</span> dissolves into ash, which is ejected into the Astral\
      \ Sea. *Success:* The target escapes and enters the nearest unoccupied space."
    "name": "Engulf"
  - "desc": "The blob lobs a slimy glob at one Large or smaller creature it can see\
      \ within 600 feet of itself. *Dexterity Saving Throw:* DC 23, the targeted creature.\
      \ *Failure:* 18 (3d6 + 8) Acid damage. The glob rolls the target 60 feet straight\
      \ toward the blob, and the target has the Restrained condition until the end\
      \ of its next turn, when the glob harmlessly dissolves. *Success:* Half damage\
      \ only."
    "name": "Restraining Glob"
"legendary_description": "Legendary Action Uses: 3. Immediately after another creature's\
  \ turn, the blob of annihilation can expend a use to take one of the following actions.\
  \ The blob of annihilation regains all expended uses at the start of each of its\
  \ turns."
"legendary_actions":
  - "desc": "The blob deals 14 (4d6) Necrotic damage to each creature engulfed by\
      \ it. The blob can't take this action again until the start of its next turn."
    "name": "Decay"
  - "desc": "The blob uses Restraining Glob. The blob can't take this action again\
      \ until the start of its next turn."
    "name": "Grasping Glob"
  - "desc": "The blob makes one Pseudopod attack."
    "name": "Lashing Goop"
"source":
  - "XMM"
  - "EFA"
"image": "/3-Mechanics/CLI/bestiary/ooze/token/blob-of-annihilation-xmm.webp"

Environment

any