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 stat comparisons shown here emphasize several valuable Sion vs. Yuumi counter stats that may help you realize the differences and similarities between the two. For instance, Sion’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Yuumi’s KDA ratio of NaN, demonstrating that Sion may be more central to his team's team fighting capability than Yuumi. This observation is in large part caused by the differences in deaths.
Sion often has a slightly larger longest kill spree than his matchup does. Typically, he takes more damage than Yuumi. This typically indicates differing health capacities, but it can also illustrate that the one champ has less mobility and thus is not able to kite away from additional harm when poked or engaged.
Both LoL champs are great champions. Both champs have their strengths, weaknesses, and counters. In League's current meta, Sion usually wins when taking on Yuumi, with a 54.7% win rate. Therefore, Sion makes a great counter for Yuumi.
While Sion does have a much higher winrate compared to Yuumi, when facing one another, Sion also has a much greater learning curve that makes him a more time consuming champion to learn and master. You should be be fine when picking Sion into Yuumi.
Moreover, Sion has a good amount of utility and CC, a similar amount to Yuumi. This often makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there is not a single best champion in League of Legends, in Sion vs Yuumi 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 teamfights.
Sion is a great counter for Yuumi. You will do well by focussing your play on keeping up your CS and destroying objectives. If you are able to do that, you should do very well as Sion against Yuumi.
If you would like to truly master Sion in order to counter Yuumi during both the lane and mid / late game phases of League of Legends, you should keep reading to gather a few extra lessons on this matchup. If you pay attention to the build and suggestions shown above, you will grow your win rate significantly and be that much closer to League of Legends pro players.
Sion on average racks up much more CS relative to Yuumi. Champions who typically don't acquire many minion kills often don't require much CS to be effective, such as support champions. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, often have to have several high cost items to be effective. In either situation, try to do better than the values displayed here to do well.
The best items to use in your Sion versus Yuumi build include Sunfire Aegis, Thornmail, and Titanic Hydra. When Sion included at least these three items in his build, he performed significantly better when fighting Yuumi than with many other typical counter builds. In fact, Sion boasted an average winrate of 54.7% when playing against Yuumi with these items in his kit.
To have the highest likelihood of defeating Yuumi as Sion, Sion players should equip the Grasp of the Undying, Demolish, Conditioning, Overgrowth, Approach Velocity, and Minion Dematerializer runes from the Resolve and Inspiration rune sets. Of all the rune combinations players used for Sion vs Yuumi battles, this order of runes resulted in the greatest win rate. In fact, these runes gave a 54.7% win rate overall.
By default, tips, stats, and builds on how to beat Yuumi as Sion are displayed for all ranked divisions combined. To scope the statistics and builds to a particular skill level, you can use the selection menu earlier in the counter matchup guide.