Call of the Void

You whisper a string of alluring words in tongues long forgotten leading the target creature to seek its own demise. 

You target a creature you can see and it makes an INT saving throw. On a failed save the target is charmed and becomes your human shield. It takes all damage directed at you or at a friendly creature you designate. At the end of each round the target takes 1d6 psychic damage and can roll again to regain control. If the target saves successfully it knows it was charmed by you and its next attack targets you directly.