Trap Generator
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Falling Boulder
This trap activates when a ruby or other valuable item is pried from a statue or other surface, that collapses the supports keeping an unstable section of a ceiling in place. There are shoddy-looking supports scattered around the area.
Effect: Targets all creatures within a 10 ft. square area, DC 14 DEX save or take 57 (10d10) damage
Trigger: removal trigger, activates when a gem or other valuable item is removed.
Countermeasures: A successful DC 10 Intelligence (Investigation) check allows a character to find a wire attached to the item which triggers the trap when pulled. A successful DC 10 Dexterity check using thieves' tools disables the trip wire harmlessly. A character without thieves' tools can attempt this check with disadvantage using any edged weapon or edged tool. On a failed check, the trap triggers.
The supports holding up the section can be destroyed, triggering the trap from a safe distance.Mass Suggestion Trap
A passage is trapped with glowing runes which must be covered or toggled to display a specific password. If the wrong runes are showing then the trap is triggered, which releases the spell stored within the trapped object. The object is covered in arcane symbols and writing.
Effect: +7 to hit against one target, Casts Mass Suggestion centered on the trigger with DC 14 (if relevant)
Trigger: runes, a surface is covered in glowing runes that can be touched or covered to form specific words, the correct word must be found to stop the trap.
Countermeasures: A successful DC 10 Intelligence (Arcana) check allows a character to figure out that the runes can be toggled or covered to make out different words. A successful dispel magic (DC 14) cast on the eye disables the trap. An unsuccessful check triggers the trap.
Casting dispel magic (DC 10) on the trap will cancel the stored spell.Destroying Traps
Traps can be damaged and destroyed, sometimes to good or bad effect. Pipes containing fire or poison will rupture and spray over the area, while mechanisms can be rendered inoperable with enough force. Determine the HP and AC of your traps based on the tables below. Sometimes a fragile trap is more dangerous than a resilient one if destroying it will fill the corridor with acid.
| Substance | AC |
|---|---|
| Cloth, paper, rope | 11 |
| Crystal, glass, ice | 13 |
| Wood, bone | 15 |
| Stone | 17 |
| Iron, steel | 19 |
| Mithral | 21 |
| Adamantine | 23 |
| Size | HP (Fragile) | HP (Resilient) |
|---|---|---|
| Tiny (bottle, lock) | 1 (1d4) | 4 (2d4) |
| Small (chest, lute) | 6 (1d6) | 12 (3d6) |
| Medium (barrel, chandelier) | 5 (1d8) | 21 (4d8) |
| Large (cart, 10x10 ft. window) | 4 (1d10) | 27 (5d10) |
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