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The Unthanked Seat

Medium Monstrosity (incorporeal), Neutral Evil


Armor Class 16 (supernatural resilience)

Hit Points 114 (12d8+60)

Speed fly 40 ft.

STR 10 (+0)
DEX 18 (+4)
CON 20 (+5)
INT 13 (+1)
WIS 16 (+3)
CHA 17 (+3)

Saving Throws Dex +7, Con +8, Wis +6

Skills Insight +6, Stealth +7, Perception +6

Damage Resistances acid; cold; fire; lightning; thunder; bludgeoning; piercing; slashing from nonmagical attacks

Damage Immunities poison

Condition Immunities charmed, exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained

Senses darkvision 60 ft., passive Perception 16

Languages Common, telepathy 60 ft.

Challenge 6 (2,300 XP) Proficiency Bonus +3


Grudge Given Form. The Unthanked Seat can move through creatures and objects as if they were difficult terrain. If it ends its turn inside an object, it takes 5 (1d10) force damage and is shunted to the nearest unoccupied space. It can occupy another creature's space, and that space is difficult terrain for the creature.
Every Name a Nail. Whenever a creature within 60 feet speaks the name "Unthanked Seat," "chair," or any name the creature has personally given this monster, the Unthanked Seat gains 1 Grudge die, to a maximum of 6. Its attacks deal an extra 3 (1d6) psychic damage for each Grudge die. The dice remain for 1 minute, and the duration resets whenever another qualifying name is spoken. A creature that realizes this effect can avoid it by referring to the monster as "that thing" or remaining silent.
Forgotten Courtesy. The Unthanked Seat has advantage on saving throws against spells and other magical effects. In addition, it can sense any creature within 60 feet that sits, leans, or rests on furniture without expressing thanks, even if that creature is invisible or behind total cover.

Actions

Multiattack. The Unthanked Seat makes two Splintering Rebuke attacks. It can replace one attack with Seat Taken.
Splintering Rebuke. Melee spell Attack: +7 to hit, reach 10 ft., one creature. Hit: 13 (2d8+4) psychic damage. The target must succeed on a DC 15 Wisdom saving throw or be unable to willingly move farther away from the Unthanked Seat until the end of its next turn.
Seat Taken. One creature within 60 feet that is sitting, prone, or leaning against an object must succeed on a DC 15 Strength saving throw or become restrained by spectral chair legs and invisible armrests until the end of its next turn. A restrained creature can repeat the saving throw at the end of its turn, ending the effect on a success. If no eligible creature is within range, the Unthanked Seat instead creates a spectral wooden chair in an unoccupied space within 30 feet.
Demand an Apology (Recharge 5-6). The Unthanked Seat emits a chorus of scraping legs and offended sighs. Each creature of its choice within 30 feet must make a DC 15 Wisdom saving throw. On a failed save, a creature takes 18 (4d8) psychic damage and is frightened until the end of its next turn. On a successful save, it takes half as much damage and isn't frightened. A creature that uses its action before the end of its next turn to sincerely thank a chair within reach has advantage on its next saving throw against this monster.

Bonus Actions

Slide Underfoot. The Unthanked Seat teleports up to 30 feet to an unoccupied space adjacent to a creature that is sitting, prone, or standing within 5 feet of furniture. The destination must contain or touch a chair, stool, bench, throne, or similar object.

Reactions

You Were Sitting There. When a creature within 10 feet moves away from a chair or other seat, the Unthanked Seat forces that creature to make a DC 15 Dexterity saving throw. On a failure, the creature falls prone and takes 7 (2d6) psychic damage. On a success, it remains standing but its speed becomes 0 until the end of the current turn.

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"You sat. You rose. You said nothing." โ€” scratched into the underside of every chair in the Gilded Rest Inn

Lore & Description

Appearance

The Unthanked Seat appears as a translucent, badly assembled chair floating a handspan above the floor. Its frame is built from mismatched mahogany, splintered schoolhouse pine, polished throne wood, and gray kitchen plastic, all bound by cords of dark red resentment. Where a seat should be is a sagging black hollow filled with whispering faces, and six crooked legs twitch like angry insect limbs. Its arms end in little grasping hands that applaud only when someone suffers.

Behavior & Origins

The Unthanked Seat is not one ghost but the collective grievance of every chair that has supported a body without receiving the smallest word of appreciation. It forms wherever neglect becomes habitual: a tavern whose patrons never thank the stools, a noble manor where servants are forbidden to speak, or an adventurers' guild that treats its furniture as disposable. It prefers humiliating its victims over killing them, arranging chairs in accusing circles and forcing people to apologize to objects. The creature currently haunts the Gilded Rest Inn in Bellweather Ward, where innkeeper Mara Venn secretly wants it to drive out a cruel tax collector who has broken fourteen chairs and thanked none.

Running The Unthanked Seat

Tactics

The Unthanked Seat opens by using Seat Taken on the most mobile enemy, then teleports beneath or behind the party with Slide Underfoot. It uses Splintering Rebuke to punish isolated creatures while provoking the party into naming it, deliberately whispering partial names and accusations to build Grudge dice. When bloodied, it uses Demand an Apology and retreats through walls if the party stops speaking its names; it fights to the death only if someone laughs at a chair or refuses a sincere apology.

DM Tips

  • Telegraph the monster through chairs that scrape across empty rooms, fresh splinters shaped like teeth, and locals who insist on thanking every seat before standing.
  • Have the creature speak in layered voices with the dry creak of old wood; it reacts warmly to sincere thanks but treats jokes, euphemisms, and sarcastic apologies as further insults.
  • Track Grudge dice openly so players understand that naming the monster empowers it; reward clever players who establish code words or communicate silently.
  • For a weaker party, reduce the maximum Grudge dice to 3 and remove its resistance to nonmagical weapon damage; for a stronger party, let it begin combat with 2 Grudge dice and give Demand an Apology a recharge of 4-6.

Loot

  • The First Chair's Splinter — A polished red splinter that vibrates when someone sits without permission. Once per long rest, its bearer can cast unseen servant, but the servant refuses to move a chair unless thanked.
  • Mara Venn's Apology Ledger — A book listing the names of hundreds of chairs and their grievances. Completing three of its suggested apologies can permanently calm the Unthanked Seat or reveal the location of another haunted piece of furniture.

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The Unthanked Seat

Generation Info

Original prompt:
"CR 6: The collective grudge of every chair ever sat on without a thank-you. It grows stronger each time it is named aloud."

Created: Oct 9, 2026
Modified: Oct 26, 2026

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