Custom Kill Greenscreen FX?

Anybody know how to make a custom Overwatch kill effect, like when you just ate about the entire team as BASTION? I’ve seen people do this on youtube, but I’m not sure as to HOW.

A video example would be helpful.

Nvidia Freestyle (new feature) allows custom FX, including greenscreen.

I want a video example, please this sound dope.

Well first, I’m gonna need help finding a Overwatch Elimination text generator greenscreen