Orianna can only affect the area the Ball is around. Use this to your advantage.
Watch out for Orianna's Ball returning to her due to leashing. This may cause some unexpected situations.
The stat comparisons shown here show some strategic Yuumi vs. Orianna matchup stats that can help you distinguish the differences and similarities between this pair of champs. As an example, Yuumi’s KDA ratio ([kills + assists] / deaths) of NaN is more than Orianna’s KDA ratio of NaN, highlighting that Yuumi may be more central to her team's team fighting capability than Orianna. This observation is in large part fueled by the differences in assists.
Yuumi normally has a significantly smaller longest killing spree than her counter does. Commonly, she takes less damage than Orianna. This often reflects different amounts of tankyness, but it can also hint that the one champ has less agility and thus is not able to escape further harm when engaged or poked.
Both League champions are great champions. Both have their strengths, weaknesses, and counters. In League's current meta, Yuumi usually loses when playing against Orianna, with a 45.0% win rate. Thus, Yuumi makes a bad counter to Orianna.
While Yuumi does have a much lower win rate than Orianna, when on opposite teams, Yuumi also has a much lower difficulty level that makes her a less difficult champion to learn. You may get destroyed when picking Yuumi into Orianna.
Furthermore, Yuumi also has a great amount of CC and other utility, a similar amount to Orianna. This makes her just as valuable during team fights, especially when facing champions with a ton of burst damage.
While there is not one best champion overall in League of Legends, in Yuumi vs Orianna matchups, Orianna is the better champ with a much lower win rate, less champion complexity, and a similar amount of utility to help out your allied champions during team fights.
Yuumi is a bad counter for Orianna. Make sure you focus your strategy on increasing your CS and destroying objectives. If you are able to do that, you should be able to stand on your own as Yuumi against Orianna.
If you would like to truly master Yuumi in order to counter Orianna during both the laning and mid / late game phases of League of Legends, you should keep reading to gather a few extra tips and tricks for this matchup. If you pay attention to the build and stats shown above, you will grow your win rate significantly and be closer to League of Legends pro players.
Yuumi typically accumulates a lot less CS compared to Orianna. Champions who typically don't take much CS usualy don't require much CS to be valuable teammates, such as sup champs. These kinds of champions are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, usually require many items to be effective. In either case, try to exceed the numbers shown on this page to do well.
The top items to have in your Yuumi versus Orianna build include Ardent Censer, Dream Maker, and Staff of Flowing Water. When Yuumi bought at least these three items in her build, she did a lot better when facing Orianna than with most other typical counter builds. In fact, Yuumi boasted an average winrate of 45.0% battling Orianna with these items in her kit.
To have the greatest chance of defeating Orianna as Yuumi, you 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 used for Yuumi vs Orianna counter picks, this mixture of runes resulted in the greatest win rate. Moreover, these runes gave a 45.0% winrate overall.
If you need to see Yuumi versus Orianna tips and matchup stats and build suggestions for a a particular rank, please choose one from the selection menu shown above. By default, the stats and strategies shown are computed using every round finished with both champions.