What is the biggest thing Riot has done (or changed) that makes you boiling mad?

I have a lot of things (nerfing AP itemization to the ground, pushing mid lane mages into supports and leaving them as crap- I.E. Karma- removal of Team Builder, etc).

But my biggest thing right now, that I absolutely hate- is the Galio rework.

Completely destroyed his old niche, made him look like a white alligator statue with a tail, and Gargolye identity thrown out the window. His old ult- completely thrown out and in turned into a mediocre taunt on his E, which slows him down immensely. Has barely any burst now, as he's more of a magey tank that gets blown up if not going full tank items, and his core identity- the ANTI MAGE- gone. That cool passive where the more AP he got from the more MR he built, was awesome. No other champ had anything like that besides Rammus's similar passive for AD.

His shield- where it healed him off of damage he took- gone. He now has a mediocre shield passive on his- E?- I think. So bland. You guys could have kept his damn shield the way it was!

And his new ult- you can't even use it on champions- Riot just had to put the limit on it that you can only ult your allies. Disgusting. Not to mention if you delay too much the person could still die and bam you're jumping into a 5 man death pool.

Anyway, I wish the team who designed his rework to read this. And if you are, you really pissed off a lot of people. Sure, he needed an update, but NOT THIS HORRIBLE. Look at WW- kept his identity and most of his unique spells. Galio? You basically kept NONE.

If I had a genie who could give me a wish, I would wish that you guys would revert him back just like you did to Kog. But that's wishful thinking and won't happen.

Anyway, what are the things that Riot as done that majorly pissed you off? Let me know, I want to see what others think!