Add ability damage / healing counters kind of like items have

I'm not sure how much work it would possibly take for something like this to actually be done, but lately I've been building zekes / ardent quite a lot, and it's always so satisfying to see just how much damage / life drained the items have accomplished. It got me thinking, why don't we just have a counter on everything, so I could tell how much damage I've shielded with my W (Lux), or how much damage I've done with my ult. Exactly how much damage did my keystone do over the course of a game? (Some of the keystones already have this aspect attached) etc etc...

Make it only work for damage / healing on champions of course, but I feel like it's really satisfying to see these numbers in game, and not all lumped together in the stats at the end of it, where you can't tell where / what your damage came from.