Disrupting Chop

Description
If it hits, this attack interrupts the target's current action. If that action was a skill, that skill is disabled for an additional 20 seconds.

Acquisition

 * Grendich Courthouse: Trainer, Taltosh
 * Talus Chute: Signet of Capture, Krogg Shmuush
 * Iron Mines of Moladune (Mission), Signet of Capture, Marika Granitehand