Temporal Cog-Snap - AI-generated fantasy Hazard

Temporal Cog-Snap

A sophisticated arrangement of interlocking gold and bronze gears embedded into a stone wall. The mechanism hums with a rhythmic, pulsing energy that vibrates in the marrow of the bone. The air around the device ripples like heat on a summer road, a sign of the chronomancy binding the gears together.

Hazard EntryMagicalLevel5Simple

Temporal Cog-Snap

5LevelRareRarityDungeonEnvironment
ClockworkArcaneTemporal
Level5
|
HP45
|
AC15
|
TypeMagical
|
ComplexitySimple
|
RarityRare

Defenses

AC15
Hard10
HP45
BT 22
Fort+n/a
Ref+n/a
Will+n/a
Immune
Poison, Psychic, Necrotic
Resist
Piercing, Slashing
Weak
Force, Thunder
ClockworkArcaneTemporal

Detection

PerDC 14 (to hear the discordant ticking)
StlDC 16
InitNone

A ten-foot section of the hallway is dominated by exposed, rotating clockwork. A central gear, larger than the others, is engraved with shimmering sapphire runes that glow with a steady blue light. Every few seconds, the gears click in unison, releasing a tiny spark of silver energy.

Standard Engagement

Trigger

The hazard triggers when a creature moves more than 10 feet within a 15-foot radius of the clockwork without performing the 'slow-step' ritual or speaking the command word.

Routine

None

Reset

The mechanism automatically rewinds and resets itself 10 minutes after being triggered, provided it has not been physically destroyed.

Chronal Displacement Lash

When triggered, the central gear spins at an impossible speed. Each creature within 15 feet must make a DC 15 Wisdom saving throw. On a failure, a creature takes 22 (4d10) force damage and is Slowed (as the spell) until the end of its next turn as their personal time-stream is fractured. On a success, the creature takes half damage and is not slowed.

Stuttering Movement

While within 15 feet of the active hazard, all terrain is considered difficult terrain as time fluctuates unpredictably, making every step feel heavier or lighter than expected.

Description

A sophisticated arrangement of interlocking gold and bronze gears embedded into a stone wall. The mechanism hums with a rhythmic, pulsing energy that vibrates in the marrow of the bone. The air around the device ripples like heat on a summer road, a sign of the chronomancy binding the gears together.

Discovery

A character who succeeds on a DC 15 Intelligence (Investigation) check notices that the ticking sound is slightly out of sync with the physical movement of the gears. A DC 15 Intelligence (Arcana) check reveals the gears are designed to snap forward in time if the rhythmic flow of the hallway is disturbed by an unsanctioned presence.

Archival Lore

The Cog-Snap was a hallmark of the Iron-Binding Guild, used to protect vaults containing sensitive blueprints. Unlike traditional traps that simply crush, the Cog-Snap forces the target's physical form to move through several seconds of time in an instant, causing massive internal stress.

Environment
Dungeon
Theme
Clockwork
Creator
Master Artificer Vane of the Iron-Binding Guild.
Purpose
A high-security area denial system that punishes rapid movement and intruders.
Game System
D&D 5E
Art Style
Technical isometric drawing on yellowed parchment, featuring glowing blue runes and intricate brass textures.
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