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.
Killing Tentacles whenever possible will make it much easier to win a fight against Illaoi.
When your spirit gets pulled out, fight back if you can. Dealing damage to Illaoi reduces the spirit's duration.
Avoid grouping up for Leap of Faith to reduce the number of Tentacles available to Illaoi.
The stat comparisons provided here show several strategic Jax versus Illaoi counter statistics that may help you grasp the distinctions between the pair. As an example, Jax’s KDA ratio ([kills + assists] / deaths) of NaN is more than Illaoi’s KDA ratio of NaN, showing that Jax may be more central to his team's team fighting capability than Illaoi..
Jax often has a similar longest killing spree as his foe does. Commonly, he takes less damage than Illaoi. This is usually reflective of differing health capacities, yet it can also hint that the champ with more health has less mobility and thus is not able to kite away from additional damage when poked or engaged.
Both League of Legends champions are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Jax usually loses when facing off against Illaoi, with a 48.4% win rate. Thus, Jax makes a poor counter for Illaoi.
While Jax does have a lower winrate compared to Illaoi, when on opposite teams, Jax also has a greater level of difficulty that makes him a more difficult champion to learn and master. You should be careful when picking Jax into Illaoi.
Additionally, Jax also has some amount of utility and CC, a similar amount to Illaoi. 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 a single best champion in League of Legends, in Jax vs Illaoi matchups, Illaoi is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your teammates during late stage team fights.
Jax is a somewhat poor counter for Illaoi. Make sure you focus your tactics on increasing your gold and cs and taking out objectives. If you can do that, you should hold your own as Jax against Illaoi.
To truly master Jax to counter Illaoi during both the early game and mid / late game phases of League of Legends, you should keep reading to gather a few extra lessons on this matchup. If you listen to the build and tips shown above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Jax on average accumulates less CS as Illaoi. Champions who on average don't take much CS typically don't need much CS to be valuable teammates, such as sup champs. They are capable of scaling well off of their skills, stats, and first items alone. Yet, champs with a lot of CS, such as hyper-carries, usually require several high cost items to be effective. In either case, try to exceed the numbers shown on this page to do well.
The ideal items to use in your Jax versus Illaoi build consist of Sterak's Gage, Blade of The Ruined King, and Sundered Sky. When Jax combined at least these three pieces in his build, he performed a lot better vs Illaoi than with most other typical item sets. In fact, Jax had an average winrate of 48.4% battling Illaoi with this counter build.
To have the greatest likelihood of defeating Illaoi as Jax, Jax players should equip the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Cosmic Insight, and Magical Footwear runes from the Precision and Inspiration rune sets. Out of all the rune builds players used for Jax vs Illaoi counterpicks, this combo of runes yielded the highest win rate. Notably, these runes averaged a 48.4% win rate overall.
By default, tips, statistics, and builds on how to beat Illaoi as Jax are presented for all ranked divisions combined. To filter the stats and builds to a specific division, you may use the selection menu located earlier on the page.