Trap Generator
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Electrified Floortile
This trap is activated when an intruder steps on a hidden pressure plate that causes electricity to course through conductive poles in the floor and electrocute anyone standing on them. The floor is metal or has holes in it where the tops of the poles stick through.
Effect: Targets all creatures within a 10 ft. square area, DC 13 DEX save or take 8 (2d10) lightning damage
Trigger: pressure plate, activates when 20 or more pounds are placed on it.
Countermeasures: A successful DC 15 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.
The electricity will be drawn to metal and can be dampened by padding.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: +6 to hit against one target, 7 (2d10) piercing damage
Trigger: lever, activates when the wrong lever is pulled.
Countermeasures: A successful DC 15 Intelligence (Investigation) check allows a character to deduce the trap's presence. A successful DC 15 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) | 4 (1d4) | 6 (2d4) |
| Small (chest, lute) | 5 (1d6) | 10 (3d6) |
| Medium (barrel, chandelier) | 5 (1d8) | 25 (4d8) |
| Large (cart, 10x10 ft. window) | 9 (1d10) | 26 (5d10) |
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