the moment sion had even an ounce of outplay potential, riot removed it
because of riot's "perfect rework" fantasy. Riot has failed so many fucking times in reworking their champs, they refuse to add any type of new mechanic to sion's counterplay-infested kit, so that whenever they ruin a champion in a rework they can say HEY GUYS WE KNOW WHAT WE'RE DOING LOOK AT SION!!!!!1
And it works because people think that sion is "balanced". BALANCED translates to SHIT in this game. Look at Ornn and see how awesomely balanced and FUN it is! Oh wait he's shit too because he gets annihilated by every other champion in his class.
How to beat sion:
Dont be a retard. This is why he thrives in omega low elo. Because people are undeniably horrible at this game and sion is a noob trap champion and we're ok with that for some reason.
Back to the point: Sion was able to Cancel his Q mid animation and redirect it. The properties of his Q remained the same. In a sense that his Q could still be cancelled by CC and what not.
Riot was like: We don't want any mechanical complexity in sion's gameplay/kit so we're removing it. And GONE. just like that. Any outplay potential he had was obliterated with a reddit thread that made it to front page.
and sion is balanced around low elo so its great to know he will forever be trapped in this shitty state.
CONTEXT
https://www.youtube.com/watch?v=dBYY9jAWtPA&feature=youtu.be