Use the time after Sion has died to reposition and prepare for his return.
Even if Sion still hits a Decimating Smash, making him release the charge earlier reduces its impact.
The stats shown on this page clarify several valuable Yuumi against Sion matchup stats that can help us distinguish the differences between this pair of champions. Yuumi’s KDA ratio ([kills + assists] / deaths) of NaN is more than Sion’s KDA ratio of NaN, showing that Yuumi may be more central to her team's team fighting potential than Sion. This observation is in large part caused by the differences in assists.
Yuumi usually has a slightly smaller longest killing spree than her counter does. Typically, she takes less damage than Sion. This commonly reflects differing health capacities; however, it can also indicate that the one champ has less mobility and thus is unable to escape additional harm when engaged or poked.
Both League champs are great champions. Both champs have their pros and cons. In the game's current meta, Yuumi usually loses when playing against Sion, with a 45.3% win rate. Therefore, Yuumi makes a poor counter for Sion.
While Yuumi does have a much lower winrate compared to Sion, when facing one another, Yuumi also has a lower difficulty level that makes her a less complex character to pick up and master. You may get destroyed when picking Yuumi into Sion.
Furthermore, Yuumi also has a very large amount of CC and other utility, a similar amount to Sion. This often makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there is not one best champion in League of Legends, in Yuumi vs Sion matchups, Sion is the better champion with a much lower win rate, less champion complexity, and a similar amount of utility to help out your team members during teamfights.
Yuumi is a bad counter for Sion. Focus your strategy on increasing your CS and clearing objectives. If you can do that, you should be able to stand on your own as Yuumi against Sion.
If you would like to learn all of the intricacies of Yuumi to counter Sion during both the laning and mid / late game phases of League of Legends, you should keep reading to gather a few extra tricks and insights into this matchup. If you mind the build and tips shown here, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Yuumi most often picks up a lot less CS compared to Sion. Champs who typically don't acquire many minion kills often don't need much CS to be valuable teammates, such as supports. They are able to scale properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually have to have a lot of items to be effective. In either situation, try to surpass the values displayed on this page to do well.
The best items to focus on in your Yuumi versus Sion build include Redemption, Dream Maker, and Moonstone Renewer. When Yuumi combined at least these three pieces in her build, she performed significantly better vs. Sion than with many other commonly used item sets. In fact, Yuumi had an average winrate of 45.3% battling Sion with these items in her kit.
To have the greatest likelihood of crushing Sion as Yuumi, Yuumi players should take the Summon Aery, Manaflow Band, Transcendence, Scorch, Font of Life, and Revitalize runes from the Sorcery and Resolve rune sets. Out of all the rune builds players picked for Yuumi vs Sion fights, this combination of runes yielded the best win rate. In fact, these runes gave a 45.3% winrate overall.
If you need to view Yuumi vs Sion tips and matchup stats and build suggestions for a a specific rank, please select one from the selection menu shown above. At first, the statistics and build suggestions given are calculated using all games completed with these champions.