Create Phylactery is a use of the Blood skill.

At-will, 10 minutes, reagent cost (1 sp plus a sympathetic component); you create a phylactery: being an object that uses sympathetic magic to create a thaumaturgical connection to another creature. The key ingredient is a sympathetic component, such as blood, hair, or even a prized possession. The object's composition does not matter much; usually, it is a simple doll. The phylactery allows the following uses:

• Locate Creature: at-will; as you concentrate, you sense the direction of the creature, and the rough distance (1 yard, 10 yards, 100 yards, 1 mile, 10 miles, 100 miles, etc).
• Spirit Link: at-will; you create a mental link to the creature. You may speak to the subject through that creature. You perceive the subject and its most immediate surroundings (a few feet). Lasts as long as you concentrate.
• Transmit Weal or Woe: at-will; you may cast a spell or use a physical attack against the doll. This transmits the effect of the spell or attack to the subject, over any distance, bypassing all wards. Each such attack has a 25% chance of destroying the doll permanently.
• Recall Spirit: 1 minute cast, concentration, subject must be dead; you conjure the creature's spirit, allowing communication. If unwilling to cooperate, you may force the subject spirit to answer questions (Will ends effect, one save per question). Destroys phylactery.
• Steal Visage: 1 minute cast, reserve; you take the form of subject, down to the most minute detail. You know important knowledge the subject would know, such as the names and faces of his close companions. To recall an important detail, such as a secret only he would know, when prompted for it, you may force it from the phylactery (Will ends; a passed save means you can conjure no more secrets this casting). Destroys phylactery.

Create Greater Phylactery ||Improves upon and/or adds new uses to phylactery:

• Dominari Sanguinem: Built atop Spirit Link. You command the actions of the target remotely (Dominance applies).
• Create Hearthstone: Creates a phylactery of a place, rather than a person. Place must have a strong threshold. Hearthstone can be used for phylactery uses, where appropriate, and can also be used to teleport (which costs Mana, TBI).
• Transmit Weal or Woe: Phylactery no longer suffers effects, and does not limit the transmission of them.
• Blood Reserve: Subject can keep a phylactery of himself, and store excess vitality in it for later use. (See S6)
• Blood Chain: Two or more subjects bind to one another with parts of the same phylactery, allowing them to share power, distribute harm, and bolster one another across arbitrary distance. (Refer to Giles vs Willow in Buffy season 6)

• Horcrux: AKA the "phylactery" liches use to stay immortal. Possibly not available for fair use.