Quality-of-life change to Karthus' passive

Simply put, it's hard to keep track of the time since you've died with Karthus' passive, so even though I want to use my R at the last second, I usually get too greedy with my other abilities and then "oops, you don't have enough time remaining to channel your ultimate so we're not going to let you cast it" leaving you awkwardly standing there for the last few seconds, and then respawning with your ultimate still up.

To fix this problem, since Karthus lives for 7 seconds after he dies, I want an indicator (clock-style, like with Riven's Broken Wings, etc) over Karthus' ult icon for the first 4 seconds of his passive form. That way players can easily tell when they are going to pass the 3-seconds-remaining "deadline" for using Karthus' ultimate.

This is such a small change that would help so much, I really, really, really want someone at Riot to see this post...