Trap Generator
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Ballista Trap
Multiple levers are rigged to activate when pulled that causes a hidden ballista to fire. There are lots of tall arrowslits in the walls.
Effect: +7 to hit (or DC 13) against one target, 18 (2d10) piercing and poison damage
Trigger: multiple levers, 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 10 Dexterity check using thieves' tools disarms the trap, disabling the trigger. Unsuccessfully attempting to pick it triggers the trap.
Swinging Log
This trap uses a trip wire that makes the trap swing out from a hole in the ceiling, toppling anyone in its path. There's large holes in the ceiling.
Effect: Targets all creatures within a 10 ft. square area, DC 13 DEX save or take 10 (2d10) damage and be knocked prone
Trigger: trip wire, activates when wire is tripped.
Countermeasures: A successful DC 15 Wisdom (Perception) check will spot the trip wire, and a 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.
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) | 3 (2d4) |
| Small (chest, lute) | 4 (1d6) | 13 (3d6) |
| Medium (barrel, chandelier) | 6 (1d8) | 10 (4d8) |
| Large (cart, 10x10 ft. window) | 6 (1d10) | 33 (5d10) |
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Their contribution stands as a beacon of hope for all adventurers!
