Blood is Power

Acquisition
Signet of Capture:
 * Tyria
 * Cry Darkday (Snake Dance)
 * Cantha
 * Chan the Dragon's Blood (The Undercity)

Related Skills
Monk
 * Peace and Harmony
 * Succor

Necromancer
 * Blood Ritual
 * Well of Power

Ranger
 * Melandru's Resilience

Elementalist
 * Ether Prodigy