Devastating Hammer

Acquisition
Signet of Capture:
 * Tyria
 * Cairn the Destroyer (Abaddon's Mouth)
 * Cairn the Smug (Ring of Fire)
 * Jade Armor (Ice Floe - a boss named "Jade Armor," watch for the yellow aura and level 28)
 * Martigris the Stalwart (Iron Mines of Moladune)
 * Perfected Armor (Thunderhead Keep)
 * Cantha
 * Tembarr Treefall (The Eternal Grove (Explorable))
 * Sentasi, The Jade Maul (Silent Surf)

Related Skills

 * Backbreaker
 * Earth Shaker
 * Hammer Bash