Signet of Corruption

Acquisition

 * House zu Heltzer
 * Kurzick Bureaucrat
 * Cavalon
 * Luxon Scavenger
 * Guild Hall
 * Luxon Scavenger or Kurzick Bureaucrat (depending on your guild's allegiance).

Trivia

 * This skill has changed since its introduction; see its skill revision history for details.