You only have very slight turning ability during Unstoppable Onslaught, so make sure to use it in straight paths.
Roar of the Slayer is a great setup ability to land a very powerful Decimating Smash.
The Soul Furnace buff displays how much shield strength is remaining, use this information to time its explosion perfectly.
Crowd controlling Ryze during Realm Warp's windup will cancel the portal.
Ryze is especially dangerous to opponents that are marked with Flux.
Use Realm Warp's windup time to figure out how to deal with what may be coming out of the portal.
The stat comparisons provided here clarify several important Sion versus Ryze matchup statistics that may help you understand the differences and similarities between the pair. Sion’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Ryze’s KDA ratio of NaN, demonstrating that Sion may be more central to his team's team fighting effectiveness than Ryze..
Sion usually has a similar longest killing spree as his counter does. Typically, he takes more damage than Ryze. This is usually reflective of different amounts of tankyness; however, it can also imply that the champion with higher HP has less mobility and thus is not able to escape additional damage when engaged or poked.
Both LoL champions are great. Both champs have their pros and cons. In the game's current meta, Sion usually wins when facing off against Ryze, with a 55.3% win rate. Therefore, Sion makes a fantastic counter to Ryze.
While Sion does have a much higher win rate compared to Ryze, when facing one another, Sion also has a lower learning curve that makes him a less complex champ to learn. You should be be fine when picking Sion into Ryze.
Furthermore, Sion also has a good amount of CC and other utility, a similar amount to Ryze. This makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there isn't a single best champion in League of Legends, in Sion vs Ryze matchups, Sion is the better champ with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your team members during late stage team fights.
Sion is a great counter to Ryze. You will do well by focussing your play on keeping up your gold income and destroying objectives. If you are able to do that, you should do very well as Sion against Ryze.
To truly master Sion to counter Ryze during both the early game and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tips and tricks for this matchup. If you listen to the build and stats displayed above, you will increase your win rate significantly and be that much closer to League of Legends pro players.
Sion typically accumulates a similar amount of CS compared to Ryze. Champions who typically don't earn many minion kills typically don't need much CS to be effective, such as support champions. They are able to scale well off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically have to have several high cost items to be effective. In either situation, try to surpass the values reported on this page to do well.
The ideal items to prioritize in your Sion versus Ryze build consist of Sunfire Aegis, Hullbreaker, and Titanic Hydra. When Sion combined at least these three pieces in his build, he did significantly better against Ryze than with most other commonly used builds. In fact, Sion had an average winrate of 55.3% when countering Ryze with this counter build.
To have the highest probability of crushing Ryze as Sion, Sion players should take the Grasp of the Undying, Demolish, Conditioning, Overgrowth, Legend: Tenacity, and Last Stand runes from the Resolve and Precision rune sets. Out of all the rune sets players used for Sion vs Ryze battles, this sequence of runes resulted in the highest win rate. Notably, these runes gave a 55.3% win rate overall.
By default, tips, statistics, and builds on how to beat Ryze as Sion are given for all skill levels combined. To scope the statistics and builds to a particular division, you can use the selection menu located earlier in the counter matchup guide.