Breath Drinker, a creater with incorporeal movement
A Breath Drinker from The Book of Many Things

For a long time, I really didn’t understand the power of incorporeal movement.  This was because I didn’t think about how much more powerful it becomes as a creature becomes stronger.   Low level creatures with incorporeal movement can slip through doors and other thin barriers. The risk of ending a turn inside a solid object and taking a bad damage roll is too serious.  Here’s a typical writeup of incorporeal movement:

This article was originally published in November 2023, and has been updated to reflect new additions to D&D monster cannon.

Incorporeal Movement.

The breath drinker can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.

The Book of Many Things, p. 154

Once a creature has a respectable amount of hit points, ending the turns inside a wall becomes a viable strategy.  A d10 of damage, even in the worst case. That is going to be alot less than what higher level PCs can dish out.

D&D Monsters with Incorporeal Movement

CreatureChallenge RatingSource
Agony4Light of Xaryxis
Allip5Mordenkainen Presents: Monsters of the Multiverse
Arcane Guardian8Tome of Beasts 2023
Arcane Wraith6Dungeons of Drakkeneim
Avatar of DeathUnknownDungeon Master’s Guide
Banshee4Monster Manual
Beheaded Vengeful Spirit4Tome of Beasts 2023
Breath Drinker14The Book of Many Things
Caradoc8Dragonlance: Shadow of the Dragon Queen
Celeste4Criticial Role Presents: Call of the Netherdeep
Cloud Giant Ghost9Candlekeep Mysteries
Deathwisp7Tome of Beasts 2023
Draconic Shard17Fizban’s Treasury of Dragon’s
Dryad Spirit4Baldur’s Gate: Descent into Avernus
Dybbuk4Mordenkainen Presents: Monsters of the Multiverse
Ebondeath4Divine Contention
Edimmu4Tome of Beasts 2023
Eidolon12Mordenkainen Presents: Monsters of the Multiverse
Eigoron’s Ghost4Storm King’s Thunder
Fidelio4Waterdeep: Dungeon of the Mad Mage
Flitterstep Eidolon3Mythic Odyssey of Theros
Gallows Speaker6Van Richten’s Guide to Ravenloft
Ghost4Monster Manual
Ghost Dragon17Fizban’s Treasury of Dragon’s
Ghostblade Eidolon5Mythic Odyssey of Theros
Ghostwalk Spider9Tome of Beasts 2023
Gremorly’s Ghost9The Book of Many Things
Haint7Journeys through the Radiant Citadel
Haugbui13Tome of Beasts 2023
Hound of Ill Omen1Xanathar’s Guide to Everything
Idolic Deity8Tome of Beasts 2023
Indentured Spirit1Guildmasters’ Guide to Ravnica
Jourrael, the Caedogeist15Tal Dorei Campaign Setting Reborn
Kalaraq Quori19Eberron: Rising from the Last War
Lantern Archon2Morte’s Planar Parade
Leedara4Dragonlance: Shadow of the Dragon Queen
Lonelywood Banshee4Icewind Dale: Rime of the Frostmaiden
Marisa4Criticial Role Presents: Call of the Netherdeep
Meri4Criticial Role Presents: Call of the Netherdeep
Miirym22Candlekeep Mysteries
Mormesk the Wraith5Phandelver and Below: The Shattered Obelisk
Nass Lantomir’s Ghost6Icewind Dale: Rime of the Frostmaiden
Obzedat Ghost8Guildmasters’ Guide to Ravnica
Ostinato4Tome of Beasts 2023
Phantom Warrior3Curse of Strahd
Phantom Warrior (Archer)3Curse of Strahd
Poltergeist2Monster Manual
Psychic Fragment0Lairs of Etharis
Psychic Fragment Swarm3Lairs of Etharis
Reaper SpiritUnknownThe Book of Many Things
Refraction of Ilvaash15Phandelver and Below: The Shattered Obelisk
Rilago4Keys from the Golden Vault
Rose Durst3Curse of Strahd
Saint Gresha6Dungeons of Drakkeneim
Scream Thief3Lairs of Etharis
Shadow Beast7Tome of Beasts 2023
Shadow Demon4Monster Manual
Shadow Horror9Guildmasters’ Guide to Ravnica
Shemshine4Candlekeep Mysteries
Snow Maiden1Curse of Strahd
Specter1Monster Manual
Spectral Cloud13Bigby Presents: Glory of the Giants
Spectral Guardian6Tome of Beasts 2023
Spirit Troll11Mordenkainen Presents: Monsters of the Multiverse
Starlight Apparition5Boo’s Astral Menagerie
Swarm of Wolf Spirits6Tome of Beasts 2023
Tempest Spirit15Bigby Presents: Glory of the Giants
Thorn Durst3Curse of Strahd
Umbral Vampire7Tome of Beasts 2023
Vos’skyriss Serpentfolk Ghost4Tal Dorei Campaign Setting Reborn
Warp Witch4Dungeons of Drakkeneim
Will-o’-Wells2The Wild Beyond the Witchlight
Will-o’-Wisp2Monster Manual
Wraith5Monster Manual

Categories: Ability Check


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