Make sure to buy items that will evolve at least 1 or 2 of your spells.
Work with your teammates to set up your Ultimate and optimize damage with your passive.
Try to catch enemy carries alone to burst them with Icathian Rain.
Be wary of Cassiopeia's damage potential with Twin Fang when she has you poisoned.
Turn away from Cassiopeia when she is casting Petrifying Gaze to get slowed instead of stunned.
The stat comparisons provided here feature several influential Kai'Sa vs. Cassiopeia matchup statistics that may help you figure out the distinctions between the two. As an example, Kai'Sa’s KDA ratio ([kills + assists] / deaths) of NaN is better than Cassiopeia’s KDA ratio of NaN, showing that Kai'Sa may be more central to her team's team fighting potential than Cassiopeia..
Kai'Sa typically has a similar longest kill spree as her enemy does. On average, she receives less damage than Cassiopeia. This commonly reflects different amounts of tankyness, yet it can also show that the champion with increased health has less agility and thus is not able to flee from additional harm when engaged or poked.
Both League of Legends champions are great champions. Both champs have their pros and cons. In the game's current meta, Kai'Sa usually loses when trying to fight Cassiopeia, with a 47.3% win rate. Thus, Kai'Sa makes a poor counter to Cassiopeia.
While Kai'Sa does have a lower winrate than Cassiopeia, when facing one another, Kai'Sa also has a much lower level of difficulty that makes her a less time consuming character to develop with. You should expect to face a difficult match when picking Kai'Sa into Cassiopeia.
Furthermore, Kai'Sa has only a small amount of CC and other utility, a similar amount to Cassiopeia. This makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there is not a single best champion for every situation in League of Legends, in Kai'Sa vs Cassiopeia matchups, Cassiopeia is the better champion with a lower win rate, less champion complexity, and a similar amount of utility to help out your allied champions during late stage team fights.
Kai'Sa is a trash counter for Cassiopeia. You will do well by focussing your gameplay on maximizing your gold income and taking out objectives. If you can do that, you should do very well as Kai'Sa against Cassiopeia.
If you would like to truly master Kai'Sa in order to counter Cassiopeia during both the lane 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 mind the build and stats displayed here, you should increase your win rate significantly and be that much closer to League of Legends pro players.
Kai'Sa typically picks up a similar amount of CS as Cassiopeia. Champs who on average don't earn much CS often don't require much CS to be effective, 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 need many items to be effective. In either situation, try to surpass the values displayed here to do well.
The most important items to prioritize in your Kai'Sa versus Cassiopeia build include Wit's End, Terminus, and Kraken Slayer. When Kai'Sa used at least these three pieces in her build, she performed much better vs Cassiopeia than with most other commonly used item sets. In fact, Kai'Sa had an average winrate of 47.3% battling Cassiopeia with these items in her kit.
To have the greatest chance of defeating Cassiopeia as Kai'Sa, Kai'Sa players should take the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Biscuit Delivery, and Magical Footwear runes from the Precision and Inspiration rune sets. Out of all the rune combinations we have analyed for Kai'Sa vs Cassiopeia counters, this composite of runes yielded the best win rate. Moreover, these runes gave a 47.3% win rate overall.
By default, tips, statistics, and builds on how to beat Cassiopeia as Kai'Sa are presented for all skill levels, merged. To narrow the stats and builds to a specific skill level, you should use the selection menu earlier on the page.