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.
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 stats shown on this page highlight some significant Jarvan IV vs. Janna counter stats that may help you appreciate the distinctions between this set of champs. As an example, Jarvan IV’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Janna’s KDA ratio of NaN, showing that Jarvan IV may be more central to his team's team fighting capacity than Janna. This observation is largely a result of the difference in kills.
Jarvan IV typically has a much larger longest killing spree than his matchup does. Typically, he takes more damage than Janna. This is usually reflective of differing health capacities, but it can also imply that the champion with higher health has less mobility and thus is unable to kite away from additional harm when engaged or poked.
Both League champions are great. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Jarvan IV usually loses when playing against Janna, with a 46.7% win rate. As a result, Jarvan IV makes a bad counter to Janna.
While Jarvan IV does have a lower winrate compared to Janna, when facing one another, Jarvan IV also has a lower level of difficulty that makes him a less difficult champ to develop with. You should expect to face a difficult match when picking Jarvan IV into Janna.
Additionally, Jarvan IV also has some amount of utility and CC, a similar amount to Janna. This often makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Jarvan IV vs Janna matchups, Janna is the better champion with a much lower win rate, less champion complexity, and a similar amount of utility to help out your team members during team fights.
Jarvan IV is a bad counter to Janna. Focus your strategy on keeping up your gold income and clearing objectives. If you do that, you should hold your own as Jarvan IV against Janna.
To truly master Jarvan IV in order to counter Janna during both the laning and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tips and tricks for this matchup. If you listen to the build and suggestions shown above, you will grow your win rate significantly and be closer to League of Legends pro players.
Jarvan IV usually gets a similar amount of CS relative to Janna. Champions who on average don't earn many minion kills typically don't require much CS to be valuable teammates, such as support champions. These kinds of champions are able to scale properly off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, usually require several high cost items to be effective. In either case, try to surpass the numbers shown here to do well.
The top items to prioritize in your Jarvan IV versus Janna build include Experimental Hexplate, Spear of Shojin, and Sundered Sky. When Jarvan IV combined at least these three pieces in his build, he did a lot better vs. Janna than with most other common item sets. In fact, Jarvan IV boasted an average winrate of 46.7% when playing against Janna with this build.
To have the greatest probability of crushing Janna as Jarvan IV, Jarvan IV players should use the Conqueror, Triumph, Legend: Alacrity, Coup de Grace, Cosmic Insight, and Magical Footwear runes from the Precision and Inspiration rune sets. Of all the runes players chose for Jarvan IV vs Janna face-offs, this blending of runes resulted in the highest win rate. In fact, these runes averaged a 46.7% winrate overall.
If you want to see Jarvan IV x Janna tips and matchup stats and build suggestions for a a particular player tier, feel free to choose one from the selection menu shown above. At first, the statistics and strategies given are calculated using all matches finished with these champions.