Mystic Twister

Acquisition
Skill Trainers who will teach this skill before it is unlocked: Hero Skill Trainers:
 * Medando (Yohlon Haven)
 * Kenohir (Command Post)
 * Iasha (Wehhan Terraces)
 * Wedende (Dajkah Inlet)
 * Warden of Whispers (Chantry of Secrets)