A sword that stores the identity of the wielder. To transfuse the soul to the blade, one must first stab himself through the heart. The person will not die, but lose the freedom of the soul upon real death.
Small village tavern specialty of the house is fresh cow blood mixed with milk. For each order they go out back and actually draw blood from a cow by puncturing a vein in it's neck. Fresh blood brought to the table where they poor milk into the glass of blood in front of the customer so they know how much blood they are getting.