Test of Faith

Acquisition
Skill Trainers:
 * Medando (Yohlon Haven)
 * Kenohir (Command Post)
 * Iasha (Wehhan Terraces)
 * Wedende (Dajkah Inlet)

Hero Skill Trainers:
 * Warden of Whispers (Chantry of Secrets)

Trivia

 * This skill used to be called 'Trembler's Touch' before the official release of Nightfall.