Stunning Strike

Acquisition
Signet of Capture:
 * Nightfall
 * Shrieker of Dread (Domain of Fear)
 * Eye of the North
 * Jadam Spearspinner (Cathedral of Flames)
 * Spider Matriarch (Arachni's Haunt)
 * Timberland Guardian (Magus Stones) (only during Lab Space quest)

Related articles

 * Adrenaline skills quick reference
 * Inflict dazed skills quick reference