I do not dabble in this dark shit but I will say one thing that I know for sure, when you call upon dark force to harm another and the light forces are also being called to protect the one being targeted by dark forces, those who conduct the dark forces will be the recipient of the very power they called upon to hurt the target.
Family members who were into this schooled me and I just stay the fuck away. You shouldn't have to pay for blessings and curses hurt all involved.
Empathanon here just stating this will backfire.