Jax benefits greatly from items that have both Ability Power and Attack Damage such as Guinsoo's Rageblade and Hextech Gunblade.
Jax can Leap Strike to friendly units, including wards. You can use them to plan your escape.
Janna's at her strongest when buffing another ally. If you can harass her ally, it will weaken her ability to fight you.
Save an interrupt ability for when Janna uses her ultimate.
Listen for the charge up sound on Howling Gale in case Janna is trying to hit you with it from off screen or from brush.
The stat comparisons shown on this page underscore some vital Jax versus Janna matchup statistics that can help us interpret the distinctions between the two. Jax’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Janna’s KDA ratio of NaN, indicating that Jax may be more central to his team's team fighting potential than Janna. This observation is largely caused by the difference in kills.
Jax typically has a much larger longest kill spree than his enemy does. Commonly, he receives more damage than Janna. This often reflects different amounts of tankyness; however, it can also show that the one champ has less mobility and thus is not able to kite away from additional damage when poked or engaged.
Both League of Legends champs are great. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Jax usually fairs equally well when facing off against Janna, with a 49.3% win rate. As a result, Jax makes an ok counter to Janna.
While Jax does have a lower winrate than Janna, when on opposite teams, Jax also has a lower level of difficulty that makes him a less difficult champ to develop with. You still need to be cautious when picking Jax into Janna.
Furthermore, Jax also has some amount of CC and other utility, a similar amount to Janna. This often makes her just as valuable during team fights, especially when trying to counter champions with a lot of burst damage.
While there is not one best champion overall in League of Legends, in Jax vs Janna matchups, Janna is the better champ with a similar win rate, less champion complexity, and a similar amount of utility to help out your allies during teamfights.
Jax is a somewhat poor counter to Janna. Focus your play on keeping up your gold and cs and clearing objectives. If you are able to do that, you should do very well as Jax against Janna.
To truly master Jax to counter Janna during both the early game and mid / late game phases of League of Legends, you should keep reading to pick up a few extra tricks and insights into this matchup. If you mind the build and stats displayed here, you will grow your win rate significantly and be closer to League of Legends pro players.
Jax usually gets much more CS compared to Janna. Champions who typically don't get many minion kills typically don't need much CS to be valuable teammates, such as support champions. 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 a lot of items to be effective. In either situation, try to surpass the values reported here to do well.
The best items to have in your Jax versus Janna build include Guardian Angel, Trinity Force, and Sundered Sky. When Jax used at least these three pieces in his build, he did a lot better vs Janna than with many other common counter builds. In fact, Jax had an average win rate of 49.3% battling Janna with this counter build.
To have the best probability of beating Janna as Jax, you should equip the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Biscuit Delivery, and Cosmic Insight runes from the Precision and Inspiration rune sets. Of all the rune builds we have analyed for Jax vs Janna fights, this mix of runes yielded the best win rate. In fact, these runes provided a 49.3% winrate overall.
If you want to get Jax versus Janna tips and builds for a a particular player tier, feel free to choose one from the selection menu above. If viewing for the first time, the statistics and build suggestions shown are computed using all games completed with both champs.