exactly what is and how does one preform the cobra breath?

Hey everyone! I was just wondering what instances I should substitute grey energy for black energy when working with black magick? If I want to ensure a speedy demise of an enemy, I was wondering what to use because I know grey energy is also known as death energy while black magick is also used...

Just wondering if any of you guys happen to be going on a Close Up American Government trip to D.C. this weekend to next week cause I am and was wondering if we could meet up and chat a little!