Sorry to sound like "that guy", i'm actually ok with Zac getting a revert if the rework didn't hit the Mark, but for now much o thought of It, It seems almost unfair that he got reverted before skarner:
Let's start from the fact that both reworks were really not needed.
Skarner got messed up way before Zac (and in a worse way), and ever since then, the most popular request from skarner mains Is a revert to Crystal Venom skarner.
Instead skarner got neglected, while Zac got endless balance changes since then.
So i'm not saying that Zac should not be reverted, but at this point, why not revert skarner also? What's preventing that?