Sion could really use a touchup. His VO is also permabugged.

Let's talk . The rework for Sion was a wonderful thing. We went from a barebones champion with hilariously unimpressive visuals and cheesy dialogue and turned him into an incredible character that comes to life... literally. I'm glad he has a proper identity in the game now and is genuinely amazing. I would play the heck out of this guy if it weren't for two glaring issues I have with him.

One is how his W, Soul Furnace, can be very unrewarding. I understand the ability is designed to have counterplay, but ever since the nerf that took his re-activation duration to 3 seconds, going out of your way to use it can be a chore. This ability is frustrating; even if you're playing as a full tank and are drawing attention like you should be, you are getting punished for taking damage when you are supposed to take damage. I wouldn't mind seeing some kind of "hit me harder" functionality where his W detonation timer comes up faster if he is hit as long as it doesn't break. This could work with how he shrugs off AoE damage and this could totally scale well. Don't take my word for it though. Not only this, but Sion can't even use his W's detonation damage in his first jungle clear - he actually needs to turn it on, wait a second, then detonate it on his own accord just as it almost breaks. It's a bit of a pain, but then again I don't see any real fix to this issue.

Another thing to note is that... there's been an issue since the rework regarding his VO. Sion has these really entertaining emotes that never actually see any use. This is because of a bug that is most certainly tied to the lines from his abilities. If he uses an ability, Sion will not be able to say anything again until much later in the game, and then after that brief period it is bugged again. Sion needs this fixed, I implore you Riot to do so.

Again, Sion is amazing. It's just that I'm a little put off by how he functions right now. I wouldn't even mind having some power stripped off somewhere to make his W impressive again. This is a signature ability that wasn't dealt with properly in my opinion. He's also a CC tank that has enough counterplay to make him potentially less useful than other more reliable champions. I think he would be fine with one reliable ability that does some measly magic damage.