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Harmonic Feedback Loom - AI-generated fantasy Hazard

Harmonic Feedback Loom

An invisible field of highly energized arcane resonance that absorbs local ambient noise and releases it all at once in a localized sonic boom when a loud sound is produced.

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Hazard EntryMagicalLevel4Simple

Harmonic Feedback Loom

4LevelUncommonRarityArcane libraries, crystalline caves, or high-security vaults.Environment
MagicalTrapSonic
Level4
|
HP44
|
AC21
|
TypeMagical
|
ComplexitySimple
|
RarityUncommon

Defenses

AC21
Hard10
HP44
BT 22
Fort++12
Ref++8
Will++5
Immune
Critical Hits, Precision Damage, Mental Effects, Poison
Resist
Sonic 10
Weak
Force 5
MagicalTrapSonic

Detection

PerDC 22 to notice sound dampening
StlDC 22 (trained)
InitNone

“To the naked eye, the area looks normal, though keen observers might notice dust motes hanging perfectly still in the air. Beneath the surface, the air is thick with invisible, vibrating threads of mana.”

Standard Engagement

Trigger

A creature within the area speaks louder than a whisper, moves in metal armor without a successful Stealth check, or engages in combat.

Routine

None

Reset

The loom automatically re-attunes and resets 1 hour after it is triggered.

Resonant Burst

The loom releases a 15-foot burst of sonic energy centered on the triggering creature. All creatures in the area take 4d6 sonic damage and must attempt a DC 21 Fortitude save. On a failure, they are deafened for 1 minute. On a critical failure, they are also stunned 1 and knocked prone by the concussive force.

Vulnerability to Silence

A silence spell cast so that its area overlaps with the loom prevents the hazard from triggering for the duration of the spell.

Description

An invisible field of highly energized arcane resonance that absorbs local ambient noise and releases it all at once in a localized sonic boom when a loud sound is produced.

Discovery

DC 22 Perception (trained) to notice the unnatural lack of echoes, or DC 20 Arcana (trained) to detect the ley line convergence in the room's corners.

Archival Lore

“The Harmonic Feedback Loom was originally designed by the silent monks of the Whispering Spire to protect their meditation chambers from intruders without using lethal, messy physical traps.”

Environment
Arcane libraries, crystalline caves, or high-security vaults.
Theme
Resonant sound and compressed vibrations.
Creator
The Disciples of the Whispering Spire
Purpose
To deter and incapacitate intruders who fail to maintain absolute silence.
Game System
Pathfinder 2E
Art Style
Art Nouveau aesthetic with crystalline geometries and glowing lavender ley lines floating in a dusty, sunlit chamber.
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