Powerball can be used as an effective escape mechanism.
Tremors and Defensive Ball Curl can be used late in the game to obliterate towers. If you're bogged down in a team fight, it is often valuable to break off and attack the buildings.
Using taunt on a champion by your tower can cause the tower to attack your enemy.
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 stat comparisons provided here highlight several important Rammus against Jarvan IV counter stats that may help us interpret the differences between this pair of champs. As an example, Rammus’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Jarvan IV’s KDA ratio of NaN, indicating that Rammus may be more central to his team's team fighting potential than Jarvan IV..
Rammus normally has a slightly smaller longest kill spree than his counter does. On average, he takes a similar amount of damage to Jarvan IV. This typically indicates differing health capacities, but it can also illustrate that the champion with more health has less mobility and thus is unable to flee from further harm when poked or engaged.
Both League champions are great. Both champs have their strengths, weaknesses, and counters. In League's current meta, Rammus usually fairs equally well when taking on Jarvan IV, with a 50.3% win rate. Thus, Rammus makes an ok counter for Jarvan IV.
While Rammus does have a higher winrate compared to Jarvan IV, when on opposite teams, Rammus also has a greater level of difficulty that makes him a more difficult champ to learn. You still need to be cautious when picking Rammus into Jarvan IV.
Moreover, Rammus has a very large amount of CC and other utility, a similar amount to Jarvan IV. This often makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there is not a single best champion in League of Legends, in Rammus vs Jarvan IV matchups, Rammus is the better champ with a similar win rate, similar champion depth, and a similar amount of utility to help out your team members during teamfights.
Rammus is a decent counter to Jarvan IV. Focus your gameplay on maximizing your CS and taking out objectives. If you are able to do that, you should be able to stand on your own as Rammus against Jarvan IV.
If you would like to truly master Rammus in order to counter Jarvan IV during both the lane 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 pay attention to the build and suggestions presented above, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Rammus often accumulates a similar amount of CS as Jarvan IV. Champions who on average don't take many minion kills typically don't need 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, champs with a lot of CS, such as hyper-carries, usually have to have several high cost items to be effective. In either situation, try to surpass the numbers shown on this page to do well.
The most important items to use in your Rammus versus Jarvan IV build include Sunfire Aegis, Thornmail, and Randuin's Omen. When Rammus included at least these three items in his build, he did significantly better when facing Jarvan IV than with many other commonly used counter builds. In fact, Rammus had an average winrate of 50.3% when countering Jarvan IV with this counter build.
To have the greatest probability of beating Jarvan IV as Rammus, you should take the Aftershock, Font of Life, Conditioning, Unflinching, Legend: Alacrity, and Triumph runes from the Resolve and Precision rune sets. Of all the rune sets players used for Rammus vs Jarvan IV face-offs, this composite of runes resulted in the greatest win rate. Moreover, these runes averaged a 50.3% winrate overall.
If you would like to view Rammus versus Jarvan IV tips and counter stats for a a specific skill level, please select one from the selection menu shown above. If viewing for the first time, the statistics and build suggestions shown are computed using all rounds run with these champs.