Valerica's Sigil Of Servitude

Using the chalk you used as the material component for this spell, you draw a complex binding sigil on the targets neck whilst they are wearing the manacles used as the material component and speak a word of power binding them forever to your service, if they stop wearing the manacles during the casting then the casting fails and the spell is wasted.

The target becomes charmed by you and regards you as an almost omnipotent being that commands servitude and obedience. You have a telepathic link with it as long as it is bound to you. You can use this telepathic link to issue commands to the creature while you are conscious (no action required), which it obeys willingly. You don't need to specify at all: with a simple command like: 'Attack that creature' or 'Guard this gate' the target does it exactly how you want it to be done (if you want it done a specific way). 

The can be unbound from you by a level 9 casting of Dispel Magic on the target. You can also end it as an action on your turn. 

If the target dies it is unbound from you. If you die then the target is unbound unless you're soul doesn't leave like being reformed near your phylactery or from a Clone spell.