Use Demacian Standard as a scouting tool when worried about incoming enemies.
You can use the Dragon Strike / Demacian Standard combo to get out of your own Cataclysm arenas.
Split your basic attacks on different champions at the beginning of fights to maximize damage.
Pale Cascade orbs only last a few seconds. Avoid Diana and engage her after the shield dissipates.
Diana can play very aggressively if she uses Lunar Rush without Moonlight, but you can punish her by slowing or stunning her when she has no way to get back into position.
Dodge Crescent Strike, or move to safety if you are affected by Moonlight.
The stat comparisons provided here feature several valuable Jarvan IV against Diana counter stats that can help us explain the distinctions between this pair of champs. For instance, Jarvan IV’s KDA ratio ([kills + assists] / deaths) of NaN is better than Diana’s KDA ratio of NaN, highlighting that Jarvan IV may be more central to his team's team fighting potential than Diana. This observation is in large part fueled by the differences in assists.
Jarvan IV normally has a slightly smaller longest kill spree than his matchup does. On average, he takes more damage than Diana. This often reflects differing health capacities, but it can also imply that the champion with higher health has less mobility and thus is unable to flee from additional damage when poked or engaged.
Both League champions are great. Both have their pros and cons. In League's current meta, Jarvan IV usually fairs equally well when trying to fight Diana, with a 49.2% win rate. Therefore, Jarvan IV makes an ok counter for Diana.
While Jarvan IV does have a lower win rate compared to Diana, when they face off with one another, Jarvan IV also has a greater learning curve that makes him a more complex champion to pick up and master. You still need to be cautious when picking Jarvan IV into Diana.
Additionally, Jarvan IV has some amount of CC and other utility, a similar amount to Diana. This makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there isn't one best champion in League of Legends, in Jarvan IV vs Diana matchups, Diana is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your teammates during team fights.
Jarvan IV is a somewhat poor counter to Diana. You will do well by focussing your strategy on maximizing your gold income and destroying objectives. If you do that, you should do very well as Jarvan IV against Diana.
If you would like to learn all of the intricacies of Jarvan IV to counter Diana during both the lane and mid / late game phases of League of Legends, you should continue reading to gather a few extra tricks and insights into this matchup. If you listen to the build and suggestions shown here, you should increase your win rate by a lot and be closer to League of Legends pro players.
Jarvan IV on average accumulates less CS compared to Diana. Champs who typically don't take much CS usualy don't require much CS to be valuable teammates, such as support champions. These kinds of champions are capable of scaling well off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, usually have to have several high cost items to be effective. In either case, try to do better than the values reported on this page to do well.
The top items to use in your Jarvan IV versus Diana build include Black Cleaver, Spear of Shojin, and Sundered Sky. When Jarvan IV incorporated at least these three pieces in his build, he did significantly better against Diana than with many other common item sets. In fact, Jarvan IV boasted an average winrate of 49.2% battling Diana with this counter build.
To have the highest probability of defeating Diana as Jarvan IV, Jarvan IV players should equip the Conqueror, Triumph, Legend: Alacrity, Coup de Grace, Cosmic Insight, and Magical Footwear runes from the Precision and Inspiration rune sets. Out of all the rune combinations players chose for Jarvan IV vs Diana counter picks, this mixture of runes resulted in the highest win rate. Moreover, these runes gave a 49.2% win rate overall.
If you want to see Jarvan IV x Diana tips and counter builds for a an individual skill level, please select one from the selection menu above. At first, the statistics and build suggestions given are calculated using every round played with these champs.