Null Trap CR 5
Type magical; Perception DC 29; Disable Device DC 29
Trigger proximity; Reset none
Effect target’s Perception check for an associated trap automatically fails (DC 15 Will save negates)
The null trap is layered on top of another trap. When a target gets close to the trap (usually within 5 ft.-10 ft.), it modifies their memory to believe that they have already searched the item or area and found it to be free of hazards.
The null trap is often paired with hastily prepared devices that may not be hidden very well or are otherwise inelegant—it is a simple yet reliable way to bolster the effectiveness of almost any trap, especially mechanical ones. The null trap has also been known to be employed as the sole protection device, but instead of having the target believe they’ve found no traps, it instead leads a target to believe he has found something so complex and ghastly that it is well beyond their abilities (deterring any attempts at trying to disarm it).