Silencing Strikes

Monsters with this passive

Echo Drifter
Echo Horror
Echo Specter
Echo Walker
Murmuring Trapper
Murmuring Treant
Murmuring Wollowtails
Silentsnap Giantcrab
Silentsnap Siren
Silentsnap Tortoise
Whispering Drifter
Whispering Manta
Whispering Octopus