Power Block

Acquisition
Signet of Capture:
 * Prophecies
 * Lyssa's Cursed (Perdition Rock)
 * Eye of the North
 * Faze Magekiller (Cathedral of Flames, Level 1)
 * Anmat the Trickster (Sacnoth Valley, or Grothmar Wardowns during "Against the Charr")

Related articles

 * Disable skills quick reference
 * Interrupt skills quick reference