Bobby and Hank barely avoid a fusillade of poisoned darts!Deadly Trap (Levels 1–4)
Trigger: A creature moves onto a pressure plate
Duration: Instantaneous, and the trap resets at the start of the next turn if it has activated fewer than three times
When a creature moves onto this trap’s pressure plate for the first time on a turn, poisoned darts shoot from tubes embedded in the surrounding walls. The holes that house these tubes are obscured by dust and cobwebs or skillfully hidden amid bas-reliefs, murals, or frescoes.
Each creature in the darts’ path must succeed on a DC 13 Dexterity saving throw or be struck by 1d3 darts, taking 3 (1d6) Poison damage per dart.
Detect and Disarm. As a Search action, a creature can examine the walls and make a DC 15 Wisdom (Perception) check, detecting the holes on a successful check. Plugging all the holes with wax, cloth, or detritus prevents the darts from firing.
As a Search action, a creature can examine the section of floor that forms the pressure plate and make a DC 15 Wisdom (Perception) check, detecting the pressure plate on a successful check. Wedging an Iron Spike or a similar object under the pressure plate prevents the trap from triggering.
At Higher Levels. You can scale the trap for higher levels by increasing each dart’s Poison damage as follows: 7 (2d6) at levels 5–10, 14 (4d6) at levels 11–16, or 24 (7d6) at levels 17–20.