For the last 80 years these magus have dominated magic on the continent of Ovelesk. So much so that young magus fear being snatched in the night by their bounty hunters. Although, the Tor Siri register and train all magus, the only ones they truly thirst for are the Blood Mages.
With their alliance broken with the Council of Vampire, the Tor Siri have outlawed the creation of Vampyres outside of Stygia. They have created crack units, often times utilizing the Dhampyr as shock troops to hunt down cults of Orcus and Vecna and to destroy their vampire creations. The Council of Vampires suspects that this is because the Tor Siri have begun manufacturing there own vampires and do not want any competition.