Trap Generator
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Box of Brown Mold
This trap is activated when an intruder steps on a hidden pressure plate that opens a box containing dangerous mold that immediately attacks. There's a small box next to the trigger.
Effect: Targets all creatures within 5 ft., DC 17 CON save or take 19 (4d10) poison damage and be poisoned for 2 hours
Trigger: pressure plate, activates when 20 or more pounds are placed on it.
Countermeasures: A successful DC 10 Wisdom (Perception) check will spot the pressure plate, and wedging an iron spike or other object under the pressure plate prevents the trap from activating.
Cold damage can destroy the mold, rendering the trap harmless.Earthmaw Trap
A lever is rigged to activate when pulled that causes the floor to open up, spilling the intruder into the trap below. The floor is made up of loose dirt or mud, and there are runes in the area.
Effect: +11 to hit against one target, 21 (4d10) piercing damage
Trigger: lever, activates when the wrong lever is pulled.
Countermeasures: A successful DC 10 Intelligence (Investigation) check allows a character to deduce the trap's presence. A successful DC 20 Dexterity check using thieves' tools disarms the trap, disabling the trigger. Unsuccessfully attempting to pick it triggers the trap.
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) | 7 (2d4) |
| Small (chest, lute) | 2 (1d6) | 8 (3d6) |
| Medium (barrel, chandelier) | 6 (1d8) | 14 (4d8) |
| Large (cart, 10x10 ft. window) | 8 (1d10) | 22 (5d10) |
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