Olaf can combine Berserker Rage, Vicious Strikes, and Ragnarok at low life to become deceptively strong.
The bonus healing granted by Vicious Strikes amplifies your Life Steal from all sources as well as heals from allies.
The stat comparisons shown here underscore some significant Olaf versus Yuumi counter statistics that may help us appreciate the distinctions between the pair. As an example, Olaf’s KDA ratio ([kills + assists] / deaths) of NaN is better than Yuumi’s KDA ratio of NaN, indicating that Olaf may be more central to his team's team fighting capability than Yuumi. This observation is in large part a result of the differences in killsdeaths.
Olaf normally has a much larger longest kill spree than his matchup does. On average, he receives more damage than Yuumi. This often reflects differing health capacities, but it can also indicate that the one champion has less agility and thus is not able to flee from additional damage when poked or engaged.
Both LoL champs are great. Both have their strengths, weaknesses, and counters. In League's current meta, Olaf usually wins when facing off against Yuumi, with a 55.8% win rate. Thus, Olaf makes a fantastic counter for Yuumi.
While Olaf does have a much higher winrate than Yuumi, when facing one another, Olaf also has a greater learning curve that makes him a more challenging champ to develop with. You should be be fine when picking Olaf into Yuumi.
Moreover, Olaf has only a small amount of utility and CC, a similar amount to Yuumi. This makes her just as valuable during teamfights, especially when fighting champions with a ton of burst damage.
While there isn't one best champion overall in League of Legends, in Olaf vs Yuumi matchups, Olaf is the better champ with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your team members during late stage team fights.
Olaf is a great counter for Yuumi. You will do well by focussing your actions on keeping up your gold income and destroying objectives. If you can do that, you should hold your own as Olaf against Yuumi.
To learn all of the intricacies of Olaf in order to counter Yuumi during both the lane and mid / late game phases of League of Legends, you should continue reading to learn a few extra tricks and insights into this matchup. If you mind the build and suggestions presented here, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Olaf often picks up much more CS as Yuumi. Champs who on average don't take much CS often don't need much CS to be valuable teammates, 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 case, try to surpass the numbers reported on this page to do well.
The ideal items to have in your Olaf versus Yuumi build include Sterak's Gage, Experimental Hexplate, and Ravenous Hydra. When Olaf included at least these three items in his build, he performed much better when facing Yuumi than with many other commonly used builds. In fact, Olaf had an average winrate of 55.8% battling Yuumi with this build.
To have the highest probability of vanquishing Yuumi as Olaf, you should take the Conqueror, Triumph, Legend: Alacrity, Last Stand, Approach Velocity, and Biscuit Delivery runes from the Precision and Inspiration rune sets. Of all the rune combinations players used for Olaf vs Yuumi face-offs, this mix of runes resulted in the greatest win rate. Moreover, these runes averaged a 55.8% winrate overall.
By default, tips, stats, and builds on how to beat Yuumi as Olaf are shown for all ranked divisions. If you would like to scope the stats and builds to a particular rank, you should use the selection menu at the top of this page.