Sion

I'll expand on this a bit from my own experiences. Sion will occasionally rotate 90 degrees upon pressing Q, resulting in ruined plays and delayed jungling. His ult does not always manually deactivate like it should, ruining fight initiations and causing him to go on jogging trips while the rest is dealing with a 4v5. I've also experienced both of these abilities stop working altogether, similar to what people have experiences with Vi's Q in the past. The only way to fix this one is by leaving the game and loading back in. In terms of play style, new Sion is right up my alley. However, I won't be picking him again until I can rely on his kit to function.