Idea: Sions' Passive Decay Speed Resetting on Kill?

General idea is Sions' decaying tick on his passive, the speed of the decay resetting if he gets a kill. Thematically it fits at face value, just took another life and got a bit more fuel even if hes bleeding out. Resetting the passive all-together seems too strong, but the tick seems like the passive would get a little buff needed. At the moment it doesn't seem very useful but i don't know how to look at that really.