Remember that nearby enemies can see which wall you're in.
Look at the line-up of both your team and the enemy's team when picking your form.
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.
The Kayn Sion synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Sion, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Kayn sees a very large drop in his KDA (ratio of kills and assists to deaths) when paired with Sion. His KDA worsened from NaN to NaN. This negative change shows that Sion helps Kayn perform not as well in competitive League of Legends rounds. Yet, the small difference demonstrates that this performance change is not very impactful.
When Kayn is an ally to Sion, he gets a little increase in his complete damage dealt. This could demonstrate that Sion provides protection for him to deal more damage or that his presence on the team also helps extend the game's duration. Similarly, when Kayn is played alongside Sion on the same team, he usually scores many fewer killing sprees than when he plays on his own. This is contrasting evidence that he is worse when playing alongside Sion.
Moreover, when Kayn plays with Sion on the same team, he often receives a little more damage than when he plays alone. Receiving more damage may mean that Sion does a poor job of covering Kayn during teamfights.
There is no universally accepted best champion pairing for Kayn that will no matter what be his ideal ally. However, overall, Sion is a good teammate for Kayn. By locking into the same team as Kayn, he improves their win rate by 1.7% to 50.9%. This proves that there is a potentially meaningful strategic relationship between Kayn and Sion that allows them to perform better together than alone.
Sion has a much lower diffuclty than Kayn. That means Kayn players don't need to be careful when lining up Sion teammates to go into battle on the same side as, as they will need a much lower level of skill to be able to play well with you.
Fighting on the same side, Kayn players should expect to witness an overall large increase in your team’s capability to deal physical damage. Combined, these champions can tear through the other team with a lot of physcial damage.
In contrast, by bringing Kayn and Sion together, you probably will not be granting your team enough magical damage output. We recommend you bring other champions on your team that fills this relative disparity in this pairing's kit.
Regardless of the ability of your Sion teammate, you need to focus on increasing your income, outlasting your enemies, and taking down objectives. If you heed this simple advice, you will do well, regardless.
If you would like to truly master Kayn to synergize with Sion during both the lane and mid / late game phases of LoL games, you should continue reading to gather additional lessons on this champion pairing. If you listen to the build and tips shown here, you should grow your win rate by a lot.
The most important finished items to have in your Kayn and Sion synergy build consist of Serylda's Grudge, Axiom Arc, and Opportunity. When Kayn included at least these three items in his build, he performed significantly better as an ally of Sion than with most other common item sets. In fact, Kayn boasted an average winrate of 50.9% when playing alongside Sion with this build.
To have the best chance of coming out on top against your oponents, you should use the First Strike, Magical Footwear, Future's Market, Cosmic Insight, Sudden Impact, and Treasure Hunter runes from the Inspiration and Domination rune sets. Of all the rune combinations players chose for Kayn and Sion pairings, this mix of runes resulted in the greatest win rate. Moreover, these runes gave a 50.9% winrate overall.
By default, tips, statistics, and builds on how to synergize Sion with Kayn are shown for all skill levels combined. If you want to narrow the stats and builds to an individual skill level, you may use the selection menu located above.