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Acquisition
Signet of Capture
 * Sessk, Woe Spreader (Maishang Hills)
 * Xiriss Stickleback (Archipelagos, only during the quest Night Raiders)
 * Jeijou, Shadow Whispered (Nahpui Quarter (Winds of Change), only during Architect of Corruption)

Trivia

 * The controversial occultist Aleister Crowley is the man in the skill icon. Also note "The Triangle" (scourge, dagger and chain) drawn on his forehead.