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.
Aqua Prison is a very powerful ability with a long cooldown, take advantage of the situation if Nami misses this ability.
Tidal Wave has a very long range but travels slowly, be aware of when it is coming your way as you can move out of its path.
Try to avoid fighting an opponent affected by Tidecaller's Blessing, it lasts a short duration so waiting it out can help you greatly.
The stats shown here clarify several vital Jax against Nami matchup stats that can help us figure out the differences and similarities between the two. For instance, Jax’s KDA ratio ([kills + assists] / deaths) of NaN is better than Nami’s ratio of NaN, demonstrating that Jax may be more central to his team's team fighting effectiveness than Nami. This observation is in large part caused by the difference in kills.
Jax often has a much larger longest kill spree than his opponent does. Commonly, he receives more damage than Nami. This often reflects differing health capacities; however, it can also hint that the one champion has less mobility and thus is unable to flee from additional damage when poked or engaged.
Both LoL champs are great champions. Both champs have their pros and cons. In the game's current meta, Jax usually wins when playing against Nami, with a 51.0% win rate. As a result, Jax makes a good counter for Nami.
While Jax does have a higher win rate than Nami, when on opposite teams, Jax also has a greater learning curve that makes him a more difficult character to learn and master. You still need to be cautious when picking Jax into Nami.
Furthermore, Jax has some amount of CC and other utility, a similar amount to Nami. This often makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there isn't a single best champion overall in League of Legends, in Jax vs Nami matchups, Jax is the better champion with a similar win rate, similar champion depth, and a similar amount of utility to help out your allied champions during late stage team fights.
Jax is a decent counter to Nami. You will do well by focussing your strategy on maximizing your CS and destroying objectives. If you do that, you should hold your own as Jax against Nami.
If you would like to learn all of the intricacies of Jax to counter Nami during both the laning and mid / late game phases of League of Legends, you should keep reading to gather a few extra tricks and insights into this matchup. If you pay attention to the build and tips shown here, you will grow your win rate significantly and be closer to League of Legends pro players.
Jax often gets much more CS relative to Nami. Champions who typically don't earn much CS usualy don't have to have much CS to be valuable teammates, such as support champions. They are capable of scaling properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, typically require many items to be effective. In either case, try to surpass the numbers reported on this page to do well.
The most important items to focus on in your Jax versus Nami build include Sterak's Gage, Spear of Shojin, and Sundered Sky. When Jax bought at least these three items in his build, he did much better vs Nami than with most other typical counter builds. In fact, Jax had an average winrate of 51.0% when countering Nami with these items in his kit.
To have the greatest likelihood of coming out on top against Nami as Jax, Jax players should use the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Magical Footwear, and Cosmic Insight runes from the Precision and Inspiration rune sets. Of all the rune builds players chose for Jax vs Nami clashes, this sequence of runes yielded the highest win rate. In fact, these runes provided a 51.0% winrate overall.
By default, tips, statistics, and builds on how to beat Nami as Jax are shown for all ranked divisions. If you would like to scope the statistics and builds to a specific division, you should use the selection menu located earlier on the page.