If somebody has done your down, hurt you or harmed you, or undermined you in some nefarious way, this powerful voodoo spell - a mojo hand amulet - will turn the tables. Your wrongdoer will get a taste of their own medicine. Forces of justice and retribution will be unleashed.
No need to fear comeback. As to "karma" and repercussions, put simply: There is nothing to fear. Any "comeback" element is prevented by symbolic payment during ritual workings.
In short, your wrongdoer gets their just desserts for what they did to you.