The paradox that was unsolvable
Sion is a great top lane and support if you ask me with a wonderful kit for both roles (jungle too but meh). Thanks to D.C. Comics the ones that watch or read it is left with the question what happens when an unstoppable force meets in immovable object? Superman says they surrender but that's not necessarily true. The reason I bring this up is because sions ultimates "unstoppable onslaught" is just that, unstoppable unless it hits terrain a character or simply the duration runs out. However where is sions counterpart? Where is his immovable object? For real life we can't have both at the same time because of newtons laws of physics. But to say we were to have both at the same time, superman answer would not work, objects can't surrender and just stop due to the newtons laws they are said to, "an object at rest wants to stay at rest" meaning no matter what unless outside force is to effect it, that object WILL stay at rest but another law states "an object in motion tends and wants to stay in motion" meaning no matter what unless effected by an outside force it will NOT stop moving. Which is why this is a paradox but the lovely thing about video games is that it's possible to make the paradox come true, from what little we could ever test about this paradox we can only assume without breaking the laws of physics the 2 forces would simply pass through each other. However if we were to break the laws of physics and one, allow the unstoppable force to exist we would have infinite power however that alone, would create a black hole, but both impacting at the same time would not only make a black hole but one big enough to eat the whole universe. But that does not stop video games from making it possible, league of legends needs this paradox for sions counterpart, a champion in league of legends needs their ultimate to be some form of immovable object. Sions being the unstoppable force and unknown character to be the immovable object.
If he ults, nothing is able to move him as long as he isn't willing to do so himself.