Thunderclap

Acquisition
Signet of Capture:
 * Kratos the Foul (Iron Mines of Moladune (Mission))
 * The Inquisitor (Iron Mines of Moladune (Mission))
 * Chrysos the Magnetic (Thunderhead Keep (Mission))
 * Mursaat Elementalist (Boss) (Ice Floe)
 * Maida the Ill Tempered (Ring of Fire (Mission))
 * Optimus Caliph (Abaddon's Mouth (Mission))