From Introduction:
The Shadowforce Archer worlds setting introduced a system of modern mystic power, allowing agents and villains to call upon tremendous abilities by virtue the belief of their followers. The abilities presented in the basic setting are representative of many traditions from around the world, but focus primarily on European and classic mythological folklore. Mystic power is not restricted to the Old World, however - this article presents new mystic abilities and invocations with a decidedly eastern flair. Also presented is a new path to supernatural power, the mystic master of stealth - the shinobi.
Players should possess the Shadowforce Archer Worldbook and the Pan-Asian Collective Chamber Book to take full advantage of this material, and The Hand of Glory Threat Book may also be helpful for creating Spycraft season with mystic flavor.
Special Note: None of this material is permitted in the Living Spycraft campaign.