Unnatural Signet

Acquisition
Skill trainers
 * Michiko (Kaineng Center)
 * Ziinyingmao Kaga (Dragon's Throat)
 * Akane (Senji's Corner)
 * Zytka (House zu Heltzer)

Trivia

 * A skill named Unnatural Signet was available during some of the earlier Guild Wars beta events in 2004. See Unnatural Signet (alpha version) for an in-game description.