The Xilaskar is an underground organisations of mages, warriors and assassins who work to destroy Kativa. The Xilaskar were founded in 4793, the year of the first Kativan war, by Tirulid, one of the last of the Arehi Elves, and were instrumental in the closing of portals opened by Kativa in the First Kativan war. Their role in the second was also significant, as they were the ones to make it into the Black Citadel, and close the last remaining portal to Daemonrealm, at the cost of their lives.

They were banned in 9954 after an incident involving the assassination of the Gratharian king, King Humphrey IX. They are banned to this day.

Their Current leader is Vrahda Luftetar.