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.
Consider playing a bit more cautiously around Kennen when you have a Mark of the Storm debuff. If he hits you with 3 Marks of the Storm, you will get stunned.
Kennen is flimsy by nature - turn and attack him if he gets careless with Lightning Rush.
The stats provided here show several significant Sion against Kennen counter statistics that may help you appreciate the differences and similarities between these two champions. For instance, Sion’s KDA ratio ([kills + assists] / deaths) of NaN is better than Kennen’s KDA ratio of NaN, showing that Sion may be more central to his team's team fighting potential than Kennen..
Sion normally has a slightly smaller longest kill spree than his opponent does. Typically, he receives more damage than Kennen. This commonly reflects different amounts of tankyness; however, it can also hint that the champ with increased HP has less mobility and thus is unable to kite away from additional harm when engaged or poked.
Both League champs are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Sion usually wins when trying to fight Kennen, with a 52.8% win rate. Thus, Sion makes a good counter to Kennen.
While Sion does have a higher winrate compared to Kennen, when facing one another, Sion also has a greater difficulty level that makes him a more challenging character to learn. You don't need to be too worried when picking Sion into Kennen.
Additionally, Sion also has a good amount of CC and other utility, a similar amount to Kennen. This 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 for every situation in League of Legends, in Sion vs Kennen matchups, Sion is the better champion with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your allies during team fights.
Sion is an above average counter to Kennen. You will do well by focussing your play on maximizing your gold income and destroying objectives. If you do that, you should hold your own as Sion against Kennen.
To truly master Sion to counter Kennen during both the lane and mid / late game phases of League of Legends, you should keep reading to learn a few extra tricks and insights into this matchup. If you mind the build and suggestions displayed above, you will increase your win rate significantly and be closer to League of Legends pro players.
Sion usually picks up a similar amount of CS as Kennen. Champs who on average don't get much CS typically don't require much CS to be valuable teammates, such as support champions. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, often require a lot of items to be effective. In either case, try to surpass the numbers reported on this page to do well.
The most important items to focus on in your Sion versus Kennen build include Unending Despair, Heartsteel, and Hollow Radiance. When Sion combined at least these three pieces in his build, he did much better when facing Kennen than with many other commonly used item sets. In fact, Sion boasted an average winrate of 52.8% when playing against Kennen with this build.
To have the highest likelihood of vanquishing Kennen as Sion, you should use the Grasp of the Undying, Demolish, Conditioning, Overgrowth, Minion Dematerializer, and Approach Velocity runes from the Resolve and Inspiration rune sets. Out of all the runes players picked for Sion vs Kennen counters, this order of runes resulted in the highest win rate. Moreover, these runes averaged a 52.8% winrate overall.
By default, tips, statistics, and builds on how to beat Kennen as Sion are shown for every ranked division. To scope the statistics and builds to a particular rank, you should use the selection menu located earlier in the counter matchup guide.