The intention of this rite is to create a servitor of material basis that absorbs the life-energy of an intended target. The life-force will be transfered to a crystal, which will store said energy and where it will be stored until you find uses for it.
Create a human shaped doll from the clay, if you want add some vampire-like attributes to it, like bat-wings. Paint one half of it red, the other black (divided vertically). In the centre of the torso, place the core of the servitor. The arms of the doll should be slightly spread, so that they can hold the vessel.
Next prepare the sigil of the target and any material links to it.
For the Vampire sigil:
Thy task is to drain the life-force of any chosen target and to transfer it to a vessel of my choice for one month. At the end the target shall die.
Statement of Intent:
It is my will to create a Vampire Servitor that drains the life-force of any chosen target and that transfers it to a vessel of my choice for one month, at the end the target shall die.
Consecration of the circle with the Chaosphere stadha.
Perform a energising exercise such as the Vortex Rite or the Speaking of the Way.
Then visualise that energy taking form in front of you, program it with the Statement of Intent. Feed it with energy and purpose until you feel that the servitor is ready.
Thy name shalt by <name>.
From me I created thee
To me thou art bound
To me thou shalt return when thou hast fulfilled thy task
<name>! Thy task is to drain the life-force of any chosen target and to transfer it to a vessel of my choice for one month. At the end of that time, the target shall die.
Now transfer the ethereal form of the servitor into the doll.
Statement of Intent 2 - Linking the servitor to the target:
It is my will to link <servitor name> to <target name>, so that he drains his/her life-force over the course of one month. At the end he/she is to die.
Take the sigil of your victim and the material link and attach it to the doll. Hold the doll and place the vessel in it's arms.
<servitor name>! Thy victim is <target name>.
Thou wilt drain him/her of his/her life-force over the course of one month.
At the end he/she shalt die.
Thou wilt transfer the life-force into this vessel and store it therein until I need it.
At <targets name> death, thou wilt go to sleep until I call upon thee again.
Shoot it of in the general direction of the victim.
The servitor should be stored in a box, resembling a coffin. Further it might be a good idea to work a specific time into it, like it should work from Full Moon to New Moon, or from Beltane to Samhain.