I have very little time to play WoW and even less time to code addons. As such I've dropped all development of all my addons. If you want to continue any addon or make a fork then feel free to do so. This is your permission slip.
Best regards, v6
Killing Blow Counter will show the amount of Killing Blows you have gotten in a single combat session in the middle of the screen. As soon as you leave combat the text will go red and disappear after 3 seconds.
By default this addon lies in standby. You can enable and disable it with /kbc.