Enchanter's Conundrum

Acquisition
Signet of Capture:
 * Captain Chichor (Arkjok Ward) (not during The Great Escape)
 * Lieutenant Nali (during Pogahn Passage mission)

Related skills

 * Nature's Renewal: Area of effect enchantment and hex cast time increase
 * Migraine: All spells are cast 100% slower with some health degeneration
 * Arcane Conundrum: All spells take twice as long to cast