Dampening
Level
6
On a critical hit, a weapon with the dampening fusion can suppress any vibration-based blindsense the target has for 1d4 rounds. The target can negate this effect with a successful Fortitude save. If the weapon already has a critical hit effect, when you score a critical hit, you can apply either the weapon’s normal critical hit effect or the dampening effect.
Source
Attack of the Swarm: The Last Refuge pg. 44
Dragonscript
ID
500311ee842df4ba25537767