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.
Jinx's ultimate does less damage the closer you are to her.
Jinx's minigun takes time to ramp up. If you see her poking with rockets try to jump on her and burst her down.
Jinx's snare grenades have a long cooldown and are her primary means of protecting herself. If she misses with them she will have a hard time escaping if engaged upon.
The stats provided here clarify several influential Cassiopeia versus Jinx matchup stats that can help us explain the differences between the two. As an example, Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is more than Jinx’s KDA ratio of NaN, indicating that Cassiopeia may be more central to her team's team fighting potential than Jinx..
Cassiopeia typically has a similar longest killing spree as her counter does. Typically, she receives more damage than Jinx. This often reflects different amounts of tankyness, yet it can also imply that the champion with higher health has less mobility and thus is not able to flee from additional damage when poked or engaged.
Both League champs are great champions. Both champs have their pros and cons. In League's current meta, Cassiopeia usually loses when taking on Jinx, with a 48.5% win rate. Thus, Cassiopeia makes a bad counter for Jinx.
While Cassiopeia does have a lower win rate than Jinx, when on opposite teams, Cassiopeia also has a much greater level of difficulty that makes her a more complex character to pick up and master. You should be careful when picking Cassiopeia into Jinxas her relative depth means that you may not be able to reach her full potential without a lot of practice beforehand.
Additionally, Cassiopeia also has a good amount of CC and other utility, a similar amount to Jinx. This makes her just as valuable during teamfights, especially when facing champions with a ton of burst damage.
While there is not a single best champion in League of Legends, in Cassiopeia vs Jinx matchups, Jinx is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your allies during team fights.
Cassiopeia is a somewhat poor counter to Jinx. You will do well by focussing your gameplay on maximizing your gold income and destroying objectives. If you can do that, you should hold your own as Cassiopeia against Jinx.
If you would like to truly master Cassiopeia in order to counter Jinx during both the lane 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 will increase your win rate significantly and be that much closer to League of Legends pro players.
Cassiopeia often picks up a similar amount of CS as Jinx. Champs who typically don't get many minion kills typically don't require much CS to be effective, such as supports. 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, typically require a lot of items to be effective. In either situation, try to surpass the numbers shown on this page to do well.
The ideal items to focus on in your Cassiopeia versus Jinx build consist of Seraph's Embrace, Liandry's Torment, and Rod of Ages. When Cassiopeia incorporated at least these three items in her build, she did much better against Jinx than with many other common builds. In fact, Cassiopeia had an average winrate of 48.5% when countering Jinx with this counter build.
To have the highest likelihood of defeating Jinx as Cassiopeia, you should take the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Manaflow Band, and Transcendence runes from the Precision and Sorcery rune sets. Out of all the runes players used for Cassiopeia vs Jinx battles, this mixture of runes yielded the greatest win rate. In fact, these runes gave a 48.5% win rate overall.
By default, tips, stats, and builds on how to beat Jinx as Cassiopeia are shown for all ranked divisions combined. To filter the statistics and builds to a distinct player tier, you can use the selection menu above.