Exploding Iron Chest
Trap
Level 15 LurkerXP 1200

Detect automatic

Initiative -

HP 75

AC 25, Fortitude 25, Reflex 3, Will -

Immune cold, fire, necrotic, poison, psychic, radiant, forced movement, all conditions, ongoing damage

Triggered Actions

Exploding Chest

Trigger: The chest is opened without the proper key or drops to 0 hit points.

Attack (No Action): Close burst 5 (creatures in the burst); +18 vs. Reflex

Hit: 3d10 + 13 damage.

Miss: Half damage.

Effect: The chest is destroyed.

Countermeasures

Detect: Perception DC 15: Success: The character notices the chest is made of overlapping triangular iron plates that have sharp edges.

Detect: Perception DC 22: Success: The character determines that the chest is designed to explode when opened without the proper key.

Detect: Perception DC 30: Success: The character correctly gauges the burst radius of the explosion.

Disable: Thievery DC 22. Three successes required. Success: The chest is disabled and unlocked. Failure (21 or less): If two checks in a row fail or one check fails by 5 or more, the trap triggers.

Published in Dungeon Magazine 199.