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Disable Device (Intelligence; Trained only) Edit
The Disable Device check is made secretly, so that you don’t necessarily know whether you’ve succeeded.
If the check succeeds, you disable the device. If it fails by 4 or less, you have failed but can try again. If you fail by 5 or more, something goes wrong. If the device is a trap, you spring it. If you’re attempting some sort of sabotage, you think the device is disabled, but it still works normally.
|Device||Time||Disable Device DC1||Example|
|Simple||1 round||10||Jam a lock|
|Tricky||1d4 rounds||15||Sabotage a wagon wheel|
|Difficult||2d4 rounds||20||Disarm a trap, reset a trap|
|Wicked||2d4 rounds||25||Disarm a complex trap, cleverly sabotage a clockwork device|
1 If you attempt to leave behind no trace of your tampering, add 5 to the DC.
The amount of time needed to make a Disable Device check depends on the task, as noted above. Disabling a simple device takes 1 round and is a full-round action. An intricate or complex device requires 1d4 or 2d4 rounds.
Varies. You can retry if you have missed the check by 4 or less, though you must be aware that you have failed in order to try again.
- A rogue who beats a trap’s DC by 10 or more can study the trap, figure out how it works, and bypass it (along with her companions) without disarming it.
- Rogues (and other characters with the trapfinding class feature) can disarm magic traps. A magic trap generally has a DC of 25 + the spell level of the magic used to create it.
- The spells fire trap, glyph of warding, symbol, and teleportation circle also create traps that a rogue can disarm with a successful Disable Device check.
- Spike growth and spike stones, however, create magic traps against which Disable Device checks do not succeed. See the individual spell descriptions for details.
Cannot be used untrained.
Once a trap’s location is known, the obvious way to ruin it is to smash the mechanism — assuming the mechanism can be accessed. Failing that, it's possible to plug up the holes from which the projectiles emerge. Doing this prevents the trap from firing unless its ammunition does enough damage to break through the plugs.
These devices can be thwarted by smashing the mechanism or blocking the weapons, as noted above. Alternatively, if a character studies the trap as it triggers, he might be able to time his dodges just right to avoid damage. A character who is doing nothing but studying a trap when it first goes off gains a +4 dodge bonus against its attacks if it is triggered again within the next minute.
Disabling a pit trap generally ruins only the trapdoor, making it an uncovered pit. Filling in the pit or building a makeshift bridge across it is an application of manual labor, not the Disable Device skill. Characters could neutralize any spikes at the bottom of a pit by attacking them — they break just as daggers do.
Dispel magic helps here. Someone who succeeds on a caster level check against the level of the trap’s creator suppresses the trap for 1d4 rounds. This works only with a targeted dispel magic, not the area version (see the spell description).