@Riot, It's time to learn about Cassiopeia's Rework
After the Trundle "failure" (as some Rioter said), we were promised that core identities of champions and what makes them feel unique would remain. And you learned from that; Master Yi, Garen, Sivir, Heimerdinger, Nasus, Twitch and Karthus visual upgrades have been one of the most suscesfull, and have been near no complain about them, while Rammus, Skarner, Cassiopeia , Renekton, Viktor, Singed and Maokai Visual Upgrades make the champions to catch up on terms of quality.
Now it's time lo learn about Cassiopeia's rework. It is something nobody asked for, it was rushed, there was no fluent comunicattion between the developer and the community, the developer has been ausent during large periods of time, it destroyed the identity of the champion, dropped both the win rate and the pick rate of the champion, didn't solve anything, and after 3 months of outcry from the community about the rework, nothing has been done but make the problem even bigger.
There are lots of thinks you can learn from this rework, and make sure that doesn't happen this again.
Thanks.