What is the best black magic spell to separate a couple slowly?

I am often asked this question repeatedly let me tell you this. When it comes time to separating a couple bonds, it is best to erode it down little by little. That is exactly how this most powerful black magic spell that works to break up a couple does.

It will bring negativity that keeps on escalating with time. As soon as the couple starts wallowing in negativity, a peaceful breakup will then emerge as soon as possible. Try it. 

Prof. Nasir is here to answer your questions. Feel free to ask.