Far-Realm Spawn
Core Spawn Worm has Advantage on saving throws against being Charmed or Frightened while another aberration is within 30 feet.
Core Spawn Worm
Core Spawn Worm 5e reference with CR 15, type, stat block details, token resources, terrain tools, fear hooks, and monster hunt generation.
CR 15AberrationStat Block + PDFHunt Ready
Original 5e-Compatible Stat BlockDownload PDF
Overview
A core spawn worm is a gargantuan aberrant tunnel-beast that swallows prey whole and turns deep stone into a hunting ground of apocalyptic scale.
Quick 5e Answer
Core Spawn Worm CR, type, stat block, and table tools
Core Spawn Worm is a CR 15 aberration for D&D 5e. This page includes AC 20, HP 445 (27d20 + 162), a ready stat block, a downloadable PDF, and connected encounter tools.
CR15
TypeAberration
Stat BlockOriginal 5e-Compatible Stat Block
PDF SheetAvailable
AC20
HP445 (27d20 + 162)
Original 5e-Compatible Stat Block
Core Spawn Worm
Gargantuan, Aberration, Chaotic Evil
Original 5e5e-compatiblemonster-almanac-original-v1PDF Ready
This is an original Monster Almanac 5e-compatible stat block, not an official SRD stat block.
Armor Class20
Hit Points445 (27d20 + 162)
Challenge15 • 13,000 XP
Proficiency+5
- Speed
- Walk 40 ft., Burrow 30 ft.
- Initiative
- +3
- Saving Throws
- Cha +7, Con +11, Str +10, Wis +8
- Skills
- Insight +8, Perception +8
- Damage Resistances
- Acid; Psychic
- Senses
- Darkvision 120 ft.; Passive Perception 18
- Passive Perception
- 18
- Languages
- Deep Speech, telepathy 120 ft.
STR21+5
DEX17+3
CON23+6
INT19+4
WIS17+3
CHA15+2
Traits
Pressure Pattern
Once on each of its turns when Core Spawn Worm damages a creature with Acid damage, that creature has Disadvantage on its next opportunity attack before the start of Core Spawn Worm's next turn.
Actions
Multiattack
Core Spawn Worm makes two Signature Strike attacks.
Signature Strike
Melee or Ranged Attack Roll: +10, reach 20 ft. or range 60/180 ft. Hit: 53 damage including Acid pressure.
Acid Surge (Recharge 5-6)
Saving Throw: creatures of the GM's choice within 30 to 60 feet. Failure: 85 Acid damage and the target cannot take Reactions until the end of its next turn. Success: Half damage.
Reactions
Defensive Instinct
When Core Spawn Worm is hit by an attack, it adds 5 to its AC against that attack, potentially causing it to miss.
Generate Terrain
Dungeon
Base + optional customizer
Morning • Subterranean Draft • Tight Corridors • Cracked Tiles • Iron Portcullis
Extraplanar
Base + optional customizer
Morning • Planar Instability • Warped Paths • Arcane Storm Lines • Planar Anchor
Underdark
Base + optional customizer
Morning • Subterranean Draft • Fungal Forests • Spore Fields • Fungal Tower
Ruins
Base + optional customizer
Morning • Clear • Scattered Walls • Rubble Fields • Fallen Statue
Wilderness
Base + optional customizer
Morning • Clear • Open Clearings • Thorn Brambles • Hunter Camp
Underground
Base + optional customizer
Morning • Subterranean Draft • Earth Tunnels • Packed Earth • Collapsed Supports
Note: These resource links work best when you are logged in to ChatGPT in your browser.
Core Spawn Worm Token, Portrait, Chatbot, Terrain, Fear Hooks, Hunt Generator, and D&D 5e Resources
Core Spawn Worm 5e reference: CR 15 aberration, AC 20, HP 445 (27d20 + 162), PDF sheet, token, portrait, terrain, fear hooks, and hunt tools for Dungeon,… This page is part of the complete Monster Almanac stat block library. It includes a original 5e-compatible stat block with a downloadable PDF sheet, plus connected prep tools. Use this Monster Almanac page to move from search result to table prep: read the quick 5e reference, open the stat block, download the PDF when available, generate a token or portrait prompt, build matching terrain, create a monster-bound fear hook, and turn Core Spawn Worm into a focused hunt.
Using Core Spawn Worm in play
Core Spawn Worm can be used in Dungeon, Extraplanar, Underdark, Ruins, Wilderness, Underground when you want a CR 15 aberration that helps shape combat pressure, exploration tension, or narrative danger.
Core Spawn Worm works well as a supporting threat, recurring danger, or encounter-building piece inside a larger scene.
The attached original 5e-compatible stat block gives you a table-ready rules reference, and the PDF button keeps the sheet easy to print or save before the session.
This makes Core Spawn Worm useful not only as a monster reference, but also as a scene-shaping piece for travel danger, dungeon pressure, wilderness discovery, or a stronger narrative threat.
Why this monster is useful
- Fits naturally into Dungeon, Extraplanar, Underdark, Ruins, Wilderness, Underground.
- Works as a CR 15 option for encounter building and pacing.
- Connects directly with a stat block, downloadable PDF, portrait, token, chatbot, terrain, fear hook, and hunt resources.
- Helps game masters move from reference to actual tabletop use more quickly.
Quick ideas for scene building
- Use Core Spawn Worm as a wandering threat tied to the local environment.
- Pair the monster with terrain from the environments shown above.
- Add an NPC witness, hunter, scholar, survivor, or fearful character to frame the danger.
- Open the chatbot resource to give the creature more roleplay or lore flavor.
- Use the hunt generator to turn this monster into a focused adventure hook.
Core Spawn Worm 5e quick FAQ
What CR is Core Spawn Worm in D&D 5e?
Core Spawn Worm is listed in Monster Almanac as a CR 15 aberration.
What type of monster is Core Spawn Worm?
Core Spawn Worm is listed as a aberration.
Does Core Spawn Worm have a 5e stat block?
Yes. This page includes a original 5e-compatible stat block and a downloadable PDF sheet.
Can I generate a token or hunt for Core Spawn Worm?
Yes. This page links to Core Spawn Worm token, portrait, chatbot, terrain, fear hook, and monster hunt tools for fast D&D prep.
Continue building the scene
After choosing Core Spawn Worm, the next step is usually to connect the monster with a place, an encounter shape, a supporting cast, or a character who fears it. Use the tools below to keep building without leaving the Monster Almanac workflow.