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The Stormtine - AI-generated fantasy Hazard

The Stormtine

The Stormtine is a compact lightning trap built to punish intruders who cross a prepared threshold. It discharges with a deafening crack, briefly turning the room into a cage of blue fire. The trap is dangerous because it rewards haste with a second target, and because its warning signs are easy to mistake for harmless magical residue.

Hazard EntryMagical mechanical trapLevel4Simple

The Stormtine

4LevelUncommonRarityAbandoned temples, fortress gatehouses, wizard laboratories, buried observatories, and chambers built around old metal foundationsEnvironment
ElectricityMagicMechanicalTrapDungeon
Level4
|
HP18
|
AC16
|
TypeMagical mechanical trap
|
ComplexitySimple
|
RarityUncommon

Defenses

AC16
Hard8
HP18
BT 12
Fort+12
Ref+14
Will+11
Immune
Lightning, Fear, Sleep, Poison, Nonmagical effects that do not damage metal or stone
Resist
Half damage from fire, Half damage from cold
Weak
Grounding the rod, Breaking the ceramic insulators, Removing the iron plate from its copper contacts, Severing the hazard from its buried power source
ElectricityMagicMechanicalTrapDungeon

Detection

PerModerate. A character who examines the floor notices the unnaturally clean iron plate, scorched dust, and hairline copper veins. A character who touches the rod or comes within 10 feet notices static in the air. A successful trap-finding check identifies the trigger and the likely direction of the discharge.
Stl12
InitThe trap acts immediately when triggered, before the triggering character can complete another action.

A blackened bronze rod rises from the floor, its tip forked like a crown. Thin copper veins run through the surrounding stone and converge on a waist-high iron plate. The air tastes of metal, hair lifts along the arms, and blue sparks crawl over the walls when anyone approaches.

Standard Engagement

Trigger

A creature steps on the iron plate, pulls the sealed door, or touches the bronze rod without first grounding it.

Routine

No routine. The hazard remains dormant until triggered, then discharges once and becomes inert for 10 minutes.

Reset

The Stormtine resets after 10 minutes if its rod remains in place and the copper veins are intact. If the rod is removed or grounded, it does not reset.

Stormtine Discharge

The lightning blast fills a 15-foot line from the rod toward the iron plate and leaps to the nearest creature within 5 feet of that line. Creatures in the area must save versus paralysis or take 2d6 lightning damage and be stunned for 1 round. A successful save halves the damage and avoids the stun. A creature standing on the iron plate saves at a -2 penalty.

Scattering Charge

A creature struck by the discharge drops one held metal item unless it succeeds on a Strength or Dexterity check. The item is not destroyed, but it becomes hot enough to inflict 1 point of damage if immediately picked up.

Chain Arc

If two or more creatures are within 5 feet of one another when the trap triggers, the lightning may jump between them. Each additional creature in that cluster takes 1d6 lightning damage unless the first target succeeds on a second save versus paralysis.

Description

The Stormtine is a compact lightning trap built to punish intruders who cross a prepared threshold. It discharges with a deafening crack, briefly turning the room into a cage of blue fire. The trap is dangerous because it rewards haste with a second target, and because its warning signs are easy to mistake for harmless magical residue.

Discovery

The hazard is discovered by close inspection of the chamber, especially the iron floor plate and copper veins. A character searching for traps notices the rod, but only a successful check reveals that the rod is still charged. Anyone wearing metal or carrying a drawn weapon feels a faint vibration within 10 feet.

Archival Lore

Stormtines were made by priests who believed lightning was a form of divine judgment. Surviving examples often guard sealed reliquaries, royal tombs, and doors associated with broken oaths. The rod is not truly magical by itself. It stores and redirects a charge drawn from a bound elemental spark or an underground vein of strange crystal.

Environment
Abandoned temples, fortress gatehouses, wizard laboratories, buried observatories, and chambers built around old metal foundations
Theme
Judgment from a trapped storm
Creator
An unnamed storm-priest of the elder kingdoms
Purpose
To protect a sacred threshold, sealed treasury, prison cell, or relic chamber from intruders.
Game System
OSR
Art Style
Gloomy old-school fantasy illustration, stark torchlight, black stone, blue-white lightning arcs, worn bronze, dangerous ancient dungeon machinery
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