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.
You only have very slight turning ability during Unstoppable Onslaught, so make sure to use it in straight paths.
Pay attention to Ionian Fervor stacks and try to engage Irelia when it is down.
Minion waves greatly enhance Irelia's mobility, beware fighting her inside one.
Beware of wasting your high impact spells on Defiant Dance.
The stats shown on this page emphasize several vital Sion against Irelia counter statistics that can help you realize the distinctions between the pair. As an example, Sion’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Irelia’s KDA ratio of NaN, indicating that Sion may be more central to his team's team fighting capability than Irelia..
Sion often has a significantly smaller longest kill spree than his opponent does. On average, he takes more damage than Irelia. This often reflects different amounts of tankyness, but it can also show that the one champion has less mobility and thus is unable to escape further damage when poked or engaged.
Both League champs are great champions. Both champs have their strengths, weaknesses, and counters. In League's current meta, Sion usually fairs equally well when facing off against Irelia, with a 50.7% win rate. As a result, Sion makes an ok counter for Irelia.
While Sion does have a higher winrate than Irelia, when they face off with one another, Sion also has a greater learning curve that makes him a more complex champion to pick up and master. You still need to be cautious when picking Sion into Irelia.
Additionally, Sion also has a good amount of CC and other utility, a similar amount to Irelia. This often makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there is not a single best champion in League of Legends, in Sion vs Irelia matchups, Sion is the better champion with a similar win rate, similar champion depth, and a similar amount of utility to help out your allied champions during late stage team fights.
Sion is a decent counter for Irelia. Focus your play on keeping up your gold and cs and destroying objectives. If you can do that, you should do very well as Sion against Irelia.
If you would like to learn all of the intricacies of Sion in order to counter Irelia during both the early game and mid / late game phases of League of Legends, you should keep reading to learn a few extra lessons on this matchup. If you pay attention to the build and stats shown here, you should increase your win rate by a lot and be closer to League of Legends pro players.
Sion on average racks up a similar amount of CS relative to Irelia. Champions who typically don't earn many minion kills usualy don't require much CS to be valuable teammates, such as support champions. These kinds of champions are able to scale properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often need several high cost items to be effective. In either situation, try to exceed the values reported here to do well.
The top items to prioritize in your Sion versus Irelia build include Thornmail, Heartsteel, and Jak'Sho, The Protean. When Sion used at least these three pieces in his build, he did much better against Irelia than with many other commonly used builds. In fact, Sion had an average win rate of 50.7% when countering Irelia with this build.
To have the greatest chance of annihilating Irelia as Sion, you should equip the Grasp of the Undying, Demolish, Conditioning, Overgrowth, Approach Velocity, and Minion Dematerializer runes from the Resolve and Inspiration rune sets. Of all the rune builds players picked for Sion vs Irelia counterpicks, this blending of runes yielded the best win rate. In fact, these runes gave a 50.7% winrate overall.
By default, tips, statistics, and builds on how to beat Irelia as Sion are given for all ranked divisions. To narrow the stats and builds to a distinct player tier, you may use the selection menu earlier in the counter matchup guide.