The Hows Of Balance: Patch 8.5
About two weeks ago I did some math and made up a chart of the way Riot's been balancing over Season 8. I decided I'd continue to update along with each new patch, to follow the trends. It's a nice way to zoom out and see the forest instead of the trees.
Therefore, here's Patch 8.5 https://imgur.com/CRPdy78.jpg?noredirect
TL;DR: This patch has largely been damage increases and utility increases. Some cool downs have shuffled around, and some damage has been nerfed, but two of the three instances of damage nerfs are Berfs that result in almost 100% buffs on average.
Edit: But not all nerfs and buffs are the same size!: Yeah, the variance of Buffs to Nerfs is an issue, but my viewpoint is that while certain nerfs might = 2 of a different buff, on average each Nerf will = each Buff, or at 'worst' 1.3(Nerf) = 1(Buff). Once we get enough data points, we can wash out the effects of outliers, and I think we're starting to hit that point already.