Cry of Frustration

Description
If target foe is using a skill, that foe and nearby foes are interrupted and suffer 10...37 damage.

Acquisition

 * Beetletun: Trainer, Ephaz
 * Henge of Denravi: Trainer, Master Scout Kiera
 * The Wilds: Signet of Capture, Grech Trundle
 * Bloodstone Fen: Signet of Capture, Hepp Bilespitter