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.
Rumble deals almost entirely magic damage. Build some Magic Resistance to reduce his damage.
Watch Rumble's Heat bar carefully. If you see him Overheat, go in for the kill while his skills are disabled.
Rumble's ultimate can deal a lot of damage if you stay inside the area of effect. When you see the missiles falling, move out of the way as quickly as possible.
The stats provided here clarify several critical Jax vs. Rumble matchup statistics that can help you figure out the distinctions between the pair. Jax’s KDA ratio ([kills + assists] / deaths) of NaN is more than Rumble’s ratio of NaN, highlighting that Jax may be more central to his team's team fighting capability than Rumble..
Jax normally has a similar longest kill spree as his opponent does. Typically, he takes more damage than Rumble. This often reflects different amounts of tankyness, yet it can also hint that the one champ has less agility and thus is not able to escape further damage when poked or engaged.
Both League champions are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Jax usually wins when facing off against Rumble, with a 51.1% win rate. Thus, Jax makes a good counter for Rumble.
While Jax does have a higher win rate compared to Rumble, when on opposite teams, Jax also has a much lower level of difficulty that makes him a less difficult character to learn and master. You still need to be cautious when picking Jax into Rumble.
Furthermore, Jax has some amount of CC and other utility, a similar amount to Rumble. This often makes her just as valuable during teamfights, especially when fighting champions with a lot of burst damage.
While there isn't a single best champion in League of Legends, in Jax vs Rumble matchups, Jax is the better champ with a higher win rate, less champion complexity, and a similar amount of utility to help out your teammates during team fights.
Jax is a decent counter for Rumble. You will do well by focussing your tactics on keeping up your gold and cs and clearing objectives. If you can do that, you should hold your own as Jax against Rumble.
To truly master Jax in order to counter Rumble during both the laning and mid / late game phases of League of Legends, you should keep reading to pick up a few extra lessons on this matchup. If you listen to the build and stats displayed above, you should grow your win rate by a lot and be closer to League of Legends pro players.
Jax on average accumulates a similar amount of CS as Rumble. Champs who typically don't get much CS often don't have to have much CS to be valuable teammates, such as sup champs. They are capable of scaling well off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, often need many items to be effective. In either situation, try to exceed the values displayed on this page to do well.
The ideal items to have in your Jax versus Rumble build include Trinity Force, Blade of The Ruined King, and Spear of Shojin. When Jax included at least these three items in his build, he did significantly better versus Rumble than with many other common counter builds. In fact, Jax boasted an average win rate of 51.1% when countering Rumble with this build.
To have the best chance of beating Rumble as Jax, you should equip the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Cosmic Insight, and Magical Footwear runes from the Precision and Inspiration rune sets. Of all the rune combinations players chose for Jax vs Rumble counter picks, this order of runes resulted in the highest win rate. Moreover, these runes provided a 51.1% winrate overall.
By default, tips, stats, and builds on how to beat Rumble as Jax are shown for all skill levels, merged. To narrow the stats and builds to a distinct skill level, you may use the selection menu above.