Trap Generator
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Falling Door Trap
This trap is activated when a creature touches its surface, which causes the false door to fall forward onto anyone in front of it. The door looks damaged and poorly made.
Effect: Targets any creature that touches it, DC 12 DEX save or take 9 (1d10) bludgeoning damage and knocked prone.
Trigger: touch trigger, activates when surface is touched by a creature.
Countermeasures: A spell or other effect that can sense the presence of magic, such as detect magic, reveals an aura of divination magic around the surface. A successful dispel magic (DC 12) cast on the surface destroys the trap. Damaging the door causes the trap to trigger. A crowbar or iron wedge can be used from the side to tip over the door safely.
Rune of Fear
An enemy in disguise attempts to direct the PCs into the trap by lying about where they need to go and triggers the trap when the PCs get close, which activates a rune of power, fearing the target. The surface is covered in runes.
Effect: Targets all creatures within 10 ft., DC 12 WIS save or become frightened for 4 (1d4) rounds
Trigger: enemy, an enemy in disguise directs the PCs into the trap.
Countermeasures: A successful DC 10 Insight check can tell that the enemy is lying. A successful DC 10 Dexterity check using thieves' tools disarms the trap. Casting dispel magic (DC 12) will dispel the runes in the symbol.
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) | 3 (1d4) | 6 (2d4) |
| Small (chest, lute) | 2 (1d6) | 10 (3d6) |
| Medium (barrel, chandelier) | 8 (1d8) | 15 (4d8) |
| Large (cart, 10x10 ft. window) | 1 (1d10) | 29 (5d10) |
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