Miss Fortune's Bounty Hunter Passive

Miss Fortune is a champion that recently has received a large amount of attention in the recent patch as well as the on going event. Now we know her for a couple things... Some more than others, but that's beside the point. She is a Bounty Hunter and I believe a passive fitting her character will help her dramatically. This does NOT replace her current passive, see it as more of an add-on.

So here is what I got: Passive: Big Bounty - If Miss Fortune delivers the killing blow to a target who is currently on a killing spree, depending on their ranking, will be given bonus gold: x3 - 100 / x4 - 150 / x5 - 200 / x6 - 250 / x-7 300 / x8 - 350.

Tell me what you think, if you think something needs to be changed comment below!