Totally agree with this suggestion, there's nothing more annoying then spending a fair bit of time trying to kill someone and then they resort to running away and killing themselves and then on top of that sms you to provoke you further. However, instead of making it for the last 15 seconds, it should only be 10 seconds as 15 seconds is too long of a cooldown for damage dealt in my opinion, other than that this suggestion is great and I would love to see it, especially in LV.