Energy Drain

Acquisition
Signet of Capture
 * Prophecies
 * Gambol Headrainer (Ice Floe)
 * Sniik Hungrymind (Spearhead Peak and Witman's Folly)
 * Druul the Untamed (Dragon's Gullet - only during quest The Titan Source)
 * Factions
 * Siska Scalewand (Archipelagos)
 * Nightfall
 * Rual, Stealer of Hope (The Ruptured Heart)