Try to knock enemies back into your towers with Explosive Cask.
Try to combo Body Slam with Explosive Cask to set up kills for your team.
The damage reduction from Drunken Rage is applied when you start drinking, try to use it when you see damage coming your way.
Cataclysm's terrain is a frightening force to fight against, but movement abilities can go through it.
Keep out of the path between Jarvan IV and his Demacian Standard to avoid being knocked up in the air.
The stats provided here show several valuable Gragas vs. Jarvan IV matchup stats that can help you understand the differences and similarities between the pair. Gragas’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Jarvan IV’s ratio of NaN, showing that Gragas may be more central to his team's team fighting capacity than Jarvan IV..
Gragas often has a similar longest kill spree as his foe does. On average, he takes a similar amount of damage to Jarvan IV. This typically indicates differing health capacities; however, it can also imply that the one champ has less mobility and thus is not able to flee from further harm when poked or engaged.
Both League champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Gragas usually wins when taking on Jarvan IV, with a 51.0% win rate. Thus, Gragas makes a good counter to Jarvan IV.
While Gragas does have a higher win rate compared to Jarvan IV, when they face off with one another, Gragas also has a greater learning curve that makes him a more difficult champ to pick up and master. You still need to be cautious when picking Gragas into Jarvan IV.
Moreover, Gragas has a good amount of utility and CC, a similar amount to Jarvan IV. This often makes her just as valuable during team fights, especially when trying to counter champions with a ton of burst damage.
While there isn't one best champion in League of Legends, in Gragas vs Jarvan IV matchups, Gragas is the better champ with a similar win rate, similar champion depth, and a similar amount of utility to help out your teammates during team fights.
Gragas is a decent counter for Jarvan IV. Make sure you focus your gameplay on increasing your gold and cs and destroying objectives. If you can do that, you should hold your own as Gragas against Jarvan IV.
If you would like to truly master Gragas to counter Jarvan IV during both the early game and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tricks and insights into this matchup. If you listen to the build and suggestions presented above, you should grow your win rate by a lot and be that much closer to League of Legends pro players.
Gragas often gets much more CS as Jarvan IV. Champs who on average don't earn much CS typically don't require much CS to be effective, such as supports. These kinds of champions are capable of scaling properly off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, typically have to have a lot of items to be effective. In either case, try to exceed the values reported here to do well.
The most crucial items to use in your Gragas versus Jarvan IV build consist of Shadowflame, Stormsurge, and Luden's Companion. When Gragas used at least these three items in his build, he did significantly better when facing Jarvan IV than with many other commonly used builds. In fact, Gragas had an average win rate of 51.0% when playing against Jarvan IV with this counter build.
To have the highest likelihood of coming out on top against Jarvan IV as Gragas, Gragas players should take the Phase Rush, Manaflow Band, Transcendence, Scorch, Biscuit Delivery, and Cosmic Insight runes from the Sorcery and Inspiration rune sets. Of all the rune builds players chose for Gragas vs Jarvan IV counters, this combo of runes yielded the greatest win rate. In fact, these runes gave a 51.0% winrate overall.
By default, tips, stats, and builds on how to beat Jarvan IV as Gragas are presented for all skill levels, merged. To scope the statistics and builds to a specific division, you may use the selection menu earlier in the counter matchup guide.