Phylactery of Warding
A cylinder of bone (with fitted top) hanging from a simple leather thong.
When a sympathetic component (as prepared by a competent Witch) is inserted into the cylinder, the wearer gains Resist 10% (all) and +10% to Will/Fort vs any hostile effects from the linked creature.
Also, once per component, the wearer may invoke a greater ward, granting Resist 50% (all) and +50% Fort/Will vs the linked creature. This lasts 3 rounds, and destroys the sympathetic component.