I've thought about this, no need to repel send only opponent's head up several times, would break his neck. And if you stick their feet on the ground ... or send body parts in opposite directions...
I doubt that we will see something like this, because it would be a little gore, but with "gravity" could be made very aggressive things, organs collapse, smash people... Yep I hope I explained well
This sounds very interesting, something like turn an enemy into a "black hole" to attract all nearby things and leave them unable to move?