Timing Janna's ultimate can push enemies away from a wounded ally or even separate enemies.
Eye of the Storm can be used on allied turrets.
Quickly firing a Howling Gale without the charge up can be used to heavily disable the other team.
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 Janna Sion synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Sion, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Janna sees a large worsening in her KDA (ratio of kills and assists to deaths) when paired with Sion. His KDA fell from NaN to NaN. This negative change shows that Sion helps Janna perform worse in competitive League of Legends games. Yet, the small difference shows that this performance change is not very impactful.
When Janna is an ally to Sion, she observes a small increase in her total damage output. This could signal that Sion supports by providing protection for her to deal more damage or that his allyship also helps extend the round's duration. Similarly, when Janna is played with Sion on the same team, he usually scores many fewer killing sprees compared to when she plays without Sion. This is contrasting evidence that she is worse when playing with Sion.
Additionally, when Janna plays with Sion on the same side, she typically receives more damage than when she plays alone. Getting dealt more damage could indicate that Sion does a poor job of protecting Janna during team fights.
There is no one best ally for Janna that will always be her top synergy. However, overall, Sion is a very typical ally for Janna. By playing on the same side as Janna, he improves their win rate by 0.5% to 51.5%. This signals that there is only a small synergy between Janna and Sion that results in them performing stronger together than alone.
Sion has a lower difficulty than Janna. That means you don't need to be cautious when lining up Sion comrades to go into battle on the same side as, as they will have to have a relatively low level of skill to be able to do well with you.
Working alongside, you will likely observe an overall large increase in your team’s ability to buff allies and debuff enemies. Together, these champions may be able to carry with the power of their abilities.
Although, by bringing Janna and Sion together, you probably will not be providing your other allies very much AD. Make sure to bring other champions on your team that helps cover this relative gap in this pairing's kit.
Regardless of your Sion ally's ability, you need to focus on maximizing 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 learn all of the intricacies of Janna to pair well with Sion during both the laning and mid / late game phases of League rounds, you should keep reading to pick up a few extra tricks and insights into this champion pairing. If you pay attention to the build and tips shown here, you should increase your win rate significantly.
The best finished items to have in your Janna and Sion synergy build include Shurelya's Battlesong, Solstice Sleigh, and Imperial Mandate. When Janna included at least these three great items in her build, she did much better when paired up with Sion than with many other common item sets. In fact, Janna had an average winrate of 51.5% helping carry Sion with these items in her kit.
To have the highest probability of crushing your oponents, Janna players should equip the Summon Aery, Manaflow Band, Celerity, Scorch, Eyeball Collection, and Relentless Hunter runes from the Sorcery and Domination rune sets. Of all the rune sets players used for this champion pairing, this set of runes yielded the highest win rate. Notably, these runes averaged a 51.5% win rate overall.
By default, tips, stats, and builds on how to team up Sion with Janna are presented for every ranked division. To narrow the statistics and builds to an individual player tier, you may use the selection menu earlier on the page.