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.
If Master Yi tries to farm with Alpha Strike, hit him a few times so he has to use mana with Meditate to heal.
Although Master Yi cannot be slowed while using Highlander, other disables can stop him in his tracks.
Meditate is an effective method of healing damage over time, but Master Yi is susceptible to coordinated team ganks early in the game.
The stats shown here show several vital Janna vs. Master Yi matchup stats that may help you explain the differences between the two. For instance, Janna’s KDA ratio ([kills + assists] / deaths) of NaN is more than Master Yi’s KDA ratio of NaN, showing that Janna may be more central to her team's team fighting potential than Master Yi. This observation is largely a result of the differences in assists.
Janna normally has a significantly smaller longest killing spree than her enemy does. On average, she takes less damage than Master Yi. This commonly reflects differing health capacities; however, it can also indicate that the one champ has less agility and thus is unable to kite away from additional harm when engaged or poked.
Both League champions are great champions. Both have their strengths, weaknesses, and counters. In League's current meta, Janna usually fairs equally well when facing off against Master Yi, with a 50.6% win rate. Therefore, Janna makes an ok counter for Master Yi.
While Janna does have a higher win rate compared to Master Yi, when they face off with one another, Janna also has a much greater difficulty level that makes her a more challenging champ to learn. You still need to be cautious when picking Janna into Master Yias her relative depth means you may not be able to reach her full potential without a lot of practice beforehand.
Moreover, Janna also has a great amount of CC and other utility, a similar amount to Master Yi. This often makes her just as valuable during team fights, especially when trying to counter champions with a lot of burst damage.
While there isn't one best champion in League of Legends, in Janna vs Master Yi matchups, Janna is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your allied champions during team fights.
Janna is a decent counter for Master Yi. Focus your gameplay on maximizing your gold and cs and destroying objectives. If you can do that, you should hold your own as Janna against Master Yi.
If you would like to truly master Janna to counter Master Yi during both the laning and mid / late game phases of League of Legends, you should continue reading to gather a few extra tips and tricks for this matchup. If you mind the build and stats presented here, you will grow your win rate significantly and be closer to League of Legends pro players.
Janna often racks up a similar amount of CS as Master Yi. Champs who on average don't earn much CS often don't have to have much CS to be valuable teammates, such as supports. They are able to scale properly off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often have to have many items to be effective. In either case, try to do better than the numbers reported on this page to do well.
The best items to focus on in your Janna versus Master Yi build include Shurelya's Battlesong, Ardent Censer, and Moonstone Renewer. When Janna used at least these three items in her build, she performed much better vs. Master Yi than with many other common item sets. In fact, Janna had an average winrate of 50.6% when countering Master Yi with this counter build.
To have the best chance of vanquishing Master Yi as Janna, you should take the Summon Aery, Manaflow Band, Celerity, Gathering Storm, Eyeball Collection, and Relentless Hunter runes from the Sorcery and Domination rune sets. Of all the rune builds players chose for Janna vs Master Yi LoL games, this sequence of runes yielded the best win rate. In fact, these runes provided a 50.6% winrate overall.
If you would like to view Janna versus Master Yi tips and counter builds for a an individual division rank, feel free to choose one from the selection menu above. By default, the stats and strategies shown are computed using all games with data with both champs.