Ah, Dungeons and Dragons. The only game where you’re own shadow can kill you.
Aside from that one boss fight in Kingdom Hearts 1, but we’re going to pretend that doesn’t exist.
Lore: A Deadly Shade
Resembling a humanoid form’s shadow, these creatures are undead that feast on the vitality of living beings. While they will feed on anything, they are particularly drawn towards those untouched by evil. Such beings, who live piously and well, cast their temptations into the darkness, making them a shadow’s ideal feast.
Should a shadow eat a victim to death, the victim’s shadow will take a life of its own. These new shadows might seek their ‘parents’ in an attempt to find revenge. Until the shadow is destroyed, the creature that birthed it no longer casts a shadow themselves.
Minimal as this lore is, it’s rife with potential! Perhaps the players could try to commune with a shadow to help it find rest. Or maybe they stumble into a town infested with them and they need to find a way to save the populace. Maybe you could focus your efforts on a cleric or paladin player, using a shadow to test the true piousness of that player’s character.
Can you make a BBEG out of a shadow? Probably not. But for a one-off session or a side quest, this is an excellent pick!
Design: Humanity Removed
You know the Cybermen from Doctor Who? Yeah, it’s kinda like that. Just remove the cyber part.

This is one of those rare times in this series where less is actually more. Sure, they could have drawn this thing to look like a winged demon with long tendrils and a devilish face. But why bother? With a monster like this, extra details would only detract from the horror, not add to it!
There are no features here to speak of. No face with any expressions, no clothes, no personality whatsoever. Only its vague humanoid outline serves to connect it to the being it used to be. It’s completely unknowable and totally uncompromising. All humanity has been stripped away, and all that’s left is something empty and hungry.
It’s a genuinely creepy design. Especially since it’s one you can so easily play with. You can add whatever little details you want, such as height and width, to tell this monster’s story. Was the person who became this shadow a tall elf? Maybe a fat little dwarf? Or is there no semblance of their old selves left whatsoever? It’s up to you, the DM, to decide.
Whatever you roll with, this is a fantastic design.
Stats: Fear the Dark
As you might expect from a shadow, this monster isn’t particularly durable. Its AC and HP pools are both fairly low. It relies much more on stealth, for which it has a fairly strong boost, to survive.
That being said, it is still difficult to hurt something as incorporeal as a shadow. It’s resistant to acid, cold, fire, lighting, and thunder damage, as well as all nonmagical melee. On top of that, it’s completely immune to necrotic and poison damage, as well as all conditions.
However, it is vulnerable to radiant damage. As one might expect; light dispels shadow and all that. Hope you’ve got a paladin in your party if you’re fighting this thing.
This monster has three abilities. Its first, Amorphous, allows it to move through spaces as narrow as one inch without squeezing. The second, Shadow Stealth, allows it to use the Hide action as a bonus action while in dim light or darkness. Finally, it’s third ability, Sunlight Weakness, gives it disadvantage on attack rolls, ability checks, and saving throws while it’s in direct sunlight.
Finally, there’s it’s primary action: Strength Drain. This attack does a fair bit of damage for a low-level monster. More than that, it reduces the target’s Strength score by 1d4 each time it hits. Should that score be reduced to 0, the target dies. Should that happen, a new shadow will be born 1d4 hours later.
Don’t worry, barbarians. You’ll get it back after a short or long rest.
As simple as these stats are, it can make for a really interesting early game fight! The shadow has plenty of options for sneaking around and escaping dangerous situations. Yet at the same time it has a myriad of weaknesses. How do the players use those weaknesses against it? How do they keep themselves strong enough to keep fighting? Can they turn its ability to hide and escape against it and set a trap using the environment? Depending on how you build it, this could be an extremely fun and memorable fight!
Placement
This was a surprisingly strong entry! It’s lore isn’t much, but what’s there is fairly substantial! It’s design is minimalism at it’s best, and it’s stats can make for an excellent battle! All in all, a high-tear monster!
With all that in mind, the Shadow is going to #27 on the Best of the Bestiary!
- Beholder
- Death Tyrant
- Mind Flayer
- Dragon Turtle
- Mummy/Mummy Lord
- Nagas (all three of ’em)
- Green Dragons
- Red Dragons
- Blue Dragons
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- Couatl
- Behir
- Aboleth
- Sea Hag
- Lamia
- Bronze Dragons
- Brass Dragons
- Copper Dragons
- Gold Dragons
- Chuul
- Kuo-Toa
- Gibbering Mouther
- Kraken
- Intellect Devourer
- Shadow <—————–
- Chimera
- Death Knight
- Fomorian
- Bone Devil
- Dracolich
- Faerie Dragon
- Gelatinous Cube
- Lich
- Peryton
- Remorhaz
- Orcs (all four of ’em)
- Magmin
- Kobold
- Kenku
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- Night Hag
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- Black Pudding
- Ankheg
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- Oni
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- Grimlock
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- Dao
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- Drow (all four of ’em)
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- Marilith
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- Darkmantle
- Doppelganger
- Revenant
- Ghoul and Ghast
- Sahuagin (all three)
- Ettin
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- Erinyes
- Chain Devil
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- Mimic
- Djinni
- Merrow
- Nalfeshnee
- Glabrezu
- Chasme
- Grell
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- Horned Devil
- Balor
- Shadow Dragon
- Myconids (all four of ’em)
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- Goristro
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- Galeb Duhr
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