Power Leak

Acquisition
Skill Quests: Skill Trainers who will teach this skill before it is unlocked:
 * Mesmerizing the Enemy (Sardelac Sanitarium)
 * Captain Osric (Yak's Bend)
 * Dakk (Ember Light Camp)
 * Firstwatch Sergio (Lion's Arch)

Related skills

 * Power Spike: Another interrupt which deals damage to an opponent instead of causing them to lose energy.