Healing Signet

Acquisition
Skill quests Skill trainers Profession changers
 * Prophecies
 * Warrior Test (Lakeside County - pre-Searing)
 * Grawl Invasion (Green Hills County - pre-Searing)
 * Gargoyle Trouble (Old Ascalon)
 * Factions
 * Mantid Hatchlings (Monastery Overlook)
 * Locate Talon Silverwing (Shing Jea Monastery)
 * Nightfall
 * Rally the Recruits/Take the Shortcut (Island of Shehkah)
 * Prophecies
 * Halbrik (Ascalon City - pre-Searing)
 * Sir Bertran (Ascalon City)
 * Dakk (Ember Light Camp)
 * Core
 * Profession Changer (Great Temple of Balthazar)
 * Prophecies
 * Agastos the Brave (Destiny's Gorge)
 * Factions
 * Senji (Senji's Corner)
 * Nightfall
 * Zuwarah (Command Post)

Trivia

 * Prior to the release of Guild Wars Prophecies, Healing Signet was planned to be a common skill (thus the colorless beta icon).