Lightning Surge

Acquisition
Signet of Capture:
 * Prophecies
 * Facet of Elements (The Dragon's Lair)
 * Factions
 * Tahmu (Nahpui Quarter mission)
 * Sarss, Stormscale (Maishang Hills)
 * Nightfall
 * Zephyr Hedger (Arkjok Ward) (only during the Koss's Elixir quest)
 * Birneh Skybringer (Sunward Marches)
 * Setikor Fireflower (Holdings of Chokhin)

Related skills

 * Wastrel's Worry
 * Incendiary Bonds
 * Knockdown