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.
When Kayn is in terrain near you, you will get a visual warning on the edge of the terrain he's in.
Umbral Trespass requires Kayn to damage a target first. Try to dodge Blade's Reach to deny him a long range cast of Umbral Trespass.
Damage Kayn while he's in Shadow Step to shorten its duration, or apply hard crowd control (stun, charm, knockup, etc) to end Shadow Step immediately.
The stat comparisons shown on this page feature some vital Sion vs. Kayn counter stats that may help you appreciate the differences and similarities between the two. For instance, Sion’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Kayn’s ratio of NaN, highlighting that Sion may be more central to his team's team fighting effectiveness than Kayn..
Sion usually has a slightly smaller longest kill spree than his enemy does. Commonly, he takes more damage than Kayn. This is usually reflective of different amounts of tankyness, but it can also imply that the champ with more health has less mobility and thus is unable to flee from additional harm when engaged or poked.
Both League of Legends champions are great. Both champs have their pros and cons. In the game's current meta, Sion usually fairs equally well when facing off against Kayn, with a 50.4% win rate. Thus, Sion makes an ok counter for Kayn.
While Sion does have a higher win rate compared to Kayn, when facing one another, Sion also has a lower learning curve that makes him a less difficult champion to learn. You still need to be cautious when picking Sion into Kayn.
Furthermore, Sion also has a good amount of CC and other utility, a similar amount to Kayn. This often makes her just as valuable during team fights, especially when facing champions with a lot of burst damage.
While there is not one best champion in League of Legends, in Sion vs Kayn matchups, Sion is the better champ with a similar win rate, less champion complexity, and a similar amount of utility to help out your teammates during late stage team fights.
Sion is a decent counter for Kayn. Make sure you focus your strategy on maximizing your gold and cs and destroying objectives. If you are able to do that, you should do very well as Sion against Kayn.
To truly master Sion to counter Kayn during both the early game and mid / late game phases of League of Legends, you should keep reading to learn a few extra tips and tricks for this matchup. If you pay attention to the build and stats displayed here, you will increase your win rate significantly and be that much closer to League of Legends pro players.
Sion typically picks up much more CS compared to Kayn. Champions who on average don't get many minion kills typically don't require much CS to be valuable teammates, such as supports. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often have to have many items to be effective. In either situation, try to exceed the values shown here to do well.
The most crucial items to have in your Sion versus Kayn build consist of Unending Despair, Kaenic Rookern, and Sunfire Aegis. When Sion used at least these three pieces in his build, he did a lot better countering Kayn than with many other typical builds. In fact, Sion boasted an average winrate of 50.4% when countering Kayn with these items in his kit.
To have the greatest likelihood of coming out on top against Kayn as Sion, you should take the Grasp of the Undying, Demolish, Conditioning, Overgrowth, Approach Velocity, and Minion Dematerializer runes from the Resolve and Inspiration rune sets. Out of all the rune builds players picked for Sion vs Kayn counterpicks, this blending of runes resulted in the highest win rate. In fact, these runes averaged a 50.4% win rate overall.
If you need to view Sion versus Kayn tips and builds for a a particular player tier, feel free to select one from the selection menu above. By default, the stats and build suggestions given are computed using every match with data with both champions.