The Sanguinist's Handbook

From publisher blurb: The Sanguinist’s Handbook is a brand new sphere for the Spheres of Power magic system, for the Pathfinder Roleplaying Game. This new sphere - the Blood Sphere - grants its wielders the power to control the blood within a body, bleeding targets dry, empowering allies, or crafting the fluid into a Blood Construct to do their bidding, and much more! Complete with new archetypes and class features for making the most of this new branch of magic, the Blood Sphere will be a wonderful addition to your games!