When the you fire a skill shot at a low health enemy
but miss by one frame, letting them escape. http://vignette4.wikia.nocookie.net/degrassi/images/0/03/Rage.gif/revision/latest?cb=20130510012030
but miss by one frame, letting them escape. http://vignette4.wikia.nocookie.net/degrassi/images/0/03/Rage.gif/revision/latest?cb=20130510012030
Pretty much, it's really bullshit.
Actually I was getting chased by an Olaf at like 2 percent health as Zilean. He actually threw his axe and turned around because he was certain that it would hit. It didn't and I lived.