Taking a specific amount of damage while Insidious Whisper: Stone is active, triggers the effects of the skill.
This effect can't be stolen or removed by enemies.

Insidious Whisper: Stone:
Inflicts Fear on the first attacker within 12m.
If the caster is under the effect of debuffs from performing skills, the debuffs are removed from the caster and Abyssal Fear is inflicted on the first attacker within 12m.
Adds an additional Cooldown of up to +10 sec to Insidious Whisper: Stone once activated.