Lead your enemy when targeting with Noxious Blast to ensure the hit.
Use Twin Fang on poisoned stationary targets like monsters and units stunned by her Petrifying Gaze for maximum damage.
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 shown on this page show several significant Cassiopeia against Jarvan IV matchup stats that may help you explain the distinctions between the pair. For instance, Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Jarvan IV’s ratio of NaN, highlighting that Cassiopeia may be more central to her team's team fighting effectiveness than Jarvan IV..
Cassiopeia often has a slightly larger longest killing spree than her matchup does. On average, she receives less damage than Jarvan IV. This commonly reflects differing health capacities, yet it can also imply that the one champ has less mobility and thus is not able to flee from further damage when poked or engaged.
Both League champs are great champions. Both champs have their pros and cons. In the game's current meta, Cassiopeia usually wins when taking on Jarvan IV, with a 51.1% win rate. As a result, Cassiopeia makes a good counter to Jarvan IV.
While Cassiopeia does have a higher winrate than Jarvan IV, when they face off with one another, Cassiopeia also has a much greater level of difficulty that makes her a more complex champ to learn. You should be careful when picking Cassiopeia into Jarvan IVas her relative depth means that you may not be able to reach her full potential without a lot of practice beforehand.
Furthermore, Cassiopeia has a good amount of CC and other utility, 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 is not one best champion for every situation in League of Legends, in Cassiopeia vs Jarvan IV matchups, Cassiopeia is the better champion with a higher win rate, more champion depth, and a similar amount of utility to help out your allied champions during late stage team fights.
Cassiopeia is a decent counter for Jarvan IV. Make sure you focus your play on maximizing your gold income and destroying objectives. If you do that, you should be able to stand on your own as Cassiopeia against Jarvan IV.
To truly master Cassiopeia in order to counter Jarvan IV during both the laning and mid / late game phases of League of Legends, you should continue reading to learn a few extra lessons on this matchup. If you listen to the build and stats shown here, you should increase your win rate by a lot and be that much closer to League of Legends pro players.
Cassiopeia most often picks up much more CS relative to Jarvan IV. Champs who on average don't get much CS usualy don't have to have much CS to be effective, such as support champions. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, typically require many items to be effective. In either situation, try to do better than the values displayed on this page to do well.
The best items to use in your Cassiopeia versus Jarvan IV build include Seraph's Embrace, Liandry's Torment, and Rod of Ages. When Cassiopeia bought at least these three pieces in her build, she performed significantly better against Jarvan IV than with many other common builds. In fact, Cassiopeia had an average win rate of 51.1% when countering Jarvan IV with these items in her kit.
To have the best likelihood of beating Jarvan IV as Cassiopeia, Cassiopeia players should equip the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Manaflow Band, and Transcendence runes from the Precision and Sorcery rune sets. Of all the rune sets players chose for Cassiopeia vs Jarvan IV face-offs, this order of runes yielded the best win rate. Moreover, these runes provided a 51.1% win rate overall.
By default, tips, statistics, and builds on how to beat Jarvan IV as Cassiopeia are given for all ranked divisions. If you want to scope the stats and builds to a particular skill level, you should use the selection menu at the top of this page.