Power Drain

Prophecies Campaign:
Skill Trainers:
 * Avena (Maguuma Stade)
 * Tengsao (The Amnoon Oasis)
 * Dakk (Ember Light Camp)

Factions Campaign:
Skill Trainers:
 * Zytka (House zu Heltzer)
 * Michiko (Kaineng Center)
 * Masaharu (Seitung Harbor)
 * Xu Fengxia (Ran Musu Gardens)

Nightfall Campaign
Hero Skill Trainers:
 * Libeh (Command Post)