Trap Generator
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Swinging Spike Wall
This trap uses a trip wire that makes a spike-covered wall suddenly swing across the target area, impaling anyone caught by it. The walls are covered in stained spikes.
Effect: Targets all creatures within a 10 ft. square area, a spike-covered wall quickly swings out and impales targets, DC 17 DEX save or take 43 (10d10) piercing damage.
Trigger: trip wire, activates when wire is tripped.
Countermeasures: A successful DC 15 Wisdom (Perception) check will spot the trip wire, and a DC 20 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.
Ice Spear Trap
An enemy in disguise asks for help and leads the PCs into the trap and triggers it, which causes ice to shoot out. The area is unusually cold, and the walls are perforated or mesh or have exposed piping.
Effect: +11 to hit against one target, DC 17 DEX save or take 49 (10d10) cold damage
Trigger: enemy, an enemy in disguise asks for help.
Countermeasures: A successful DC 15 Insight check can tell that the enemy is lying. A successful DC 20 Dexterity check using thieves' tools disarms the trap.
Destroying the trap will rupture the pipes and spray ice over the area, if fire damage is used the ice will melt and become water.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) | 2 (1d4) | 6 (2d4) |
| Small (chest, lute) | 4 (1d6) | 7 (3d6) |
| Medium (barrel, chandelier) | 1 (1d8) | 21 (4d8) |
| Large (cart, 10x10 ft. window) | 4 (1d10) | 28 (5d10) |
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