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

 * Along with this skill, Mystic Sandstorm and Mystic Twister are the only spells that require adrenaline instead of energy.
 * This skill used to be called "Trembler's Touch" before the official release of Nightfall.