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.
Pale Cascade orbs only last a few seconds. Avoid Diana and engage her after the shield dissipates.
Diana can play very aggressively if she uses Lunar Rush without Moonlight, but you can punish her by slowing or stunning her when she has no way to get back into position.
Dodge Crescent Strike, or move to safety if you are affected by Moonlight.
The stats provided here underscore some strategic Cassiopeia against Diana matchup stats that may help you grasp the differences between the pair. For instance, Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is more than Diana’s KDA ratio of NaN, highlighting that Cassiopeia may be more central to her team's team fighting capacity than Diana..
Cassiopeia normally has a similar longest kill spree as her foe does. Commonly, she receives a similar amount of damage to Diana. This often reflects different amounts of tankyness, yet it can also illustrate that the one champion has less mobility and thus is not able to escape additional harm when poked or engaged.
Both League champs are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Cassiopeia usually fairs equally well when taking on Diana, with a 50.8% win rate. As a result, Cassiopeia makes an ok counter for Diana.
While Cassiopeia does have a higher win rate than Diana, when on opposite teams, Cassiopeia also has a much greater learning curve that makes her a more time consuming champ to pick up and master. You should be careful when picking Cassiopeia into Dianaas her relative depth means you may not be able to reach her full potential without a lot of practice beforehand.
Moreover, Cassiopeia also has a good amount of CC and other utility, a similar amount to Diana. 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 a single best champion in League of Legends, in Cassiopeia vs Diana matchups, Cassiopeia is the better champion with a similar win rate, more champion depth, and a similar amount of utility to help out your allied champions during teamfights.
Cassiopeia is a decent counter to Diana. Make sure you focus your gameplay on maximizing your gold and cs and destroying objectives. If you can do that, you should be able to stand on your own as Cassiopeia against Diana.
To learn all of the intricacies of Cassiopeia to counter Diana during both the laning 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 stats presented above, you will increase your win rate significantly and be that much closer to League of Legends pro players.
Cassiopeia often racks up more CS as Diana. Champions who typically don't take many minion kills usualy don't have to have much CS to be effective, such as supports. They are capable of scaling properly off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, often have to have a lot of items to be effective. In either case, try to surpass the numbers reported on this page to do well.
The best items to have in your Cassiopeia versus Diana build include Liandry's Anguish, Seraph's Embrace, and Rabadon's Deathcap. When Cassiopeia bought at least these three pieces in her build, she did significantly better when fighting Diana than with most other common counter builds. In fact, Cassiopeia had an average winrate of 50.8% when countering Diana with this counter build.
To have the greatest chance of beating Diana as Cassiopeia, you should take the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Biscuit Delivery, and Cosmic Insight runes from the Precision and Inspiration rune sets. Out of all the rune combinations players picked for Cassiopeia vs Diana face-offs, this blending of runes resulted in the highest win rate. Notably, these runes gave a 50.8% win rate overall.
If you want to get Cassiopeia vs Diana tips and matchup stats and build suggestions for a an individual player tier, feel free to select one from the selection menu displayed above. If viewing for the first time, the stats and build suggestions given are calculated using all matches with data with both champs.