Verified for patch 16.8.1

Last Whisper

Damage from attacks and Abilities 30% Sunder the target for 3 seconds. This effect does not stack.

Sunder: Reduce Armor

Recipe

Effects

AD: 0.15
AS: 20
ArmorBreakDuration: 3
ArmorReductionPercent: 30
CritChance: 20

Last Whisper enables

Sunder On the Menu

Reduces the target's Armor for a duration.