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 stat comparisons shown here emphasize several critical Cassiopeia against Diana matchup stats that may help us appreciate the differences between the pair. As an example, Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is better than Diana’s ratio of NaN, indicating that Cassiopeia may be more central to her team's team fighting effectiveness than Diana..
Cassiopeia often has a similar longest kill spree as her matchup does. Typically, she receives a similar amount of damage to Diana. This commonly reflects differing health capacities, yet it can also imply that the one champion has less mobility and thus is unable to kite away from additional harm when poked or engaged.
Both LoL champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Cassiopeia usually fairs equally well when taking on Diana, with a 50.7% win rate. Thus, Cassiopeia makes an ok counter for Diana.
While Cassiopeia does have a higher winrate compared to Diana, when they face off with one another, Cassiopeia also has a much greater learning curve that makes her a more difficult champion to learn. You still need to be cautious when picking Cassiopeia into Dianaas her relative depth means you may not be able to unleash her full potential without a lot of practice beforehand.
Additionally, Cassiopeia has a good amount of utility and CC, a similar amount to Diana. This often makes her just as valuable during team fights, especially when trying to counter champions with a lot of burst damage.
While there is not a single best champion overall in League of Legends, in Cassiopeia vs Diana matchups, Cassiopeia is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your team members during team fights.
Cassiopeia is a decent counter for Diana. Focus your tactics on maximizing your CS and clearing objectives. If you do that, you should be able to stand on your own as Cassiopeia against Diana.
If you would like to truly master Cassiopeia in order to counter Diana during both the lane and mid / late game phases of League of Legends, you should continue reading to pick up a few extra lessons on this matchup. If you pay attention to the build and tips presented here, you will grow your win rate significantly and be that much closer to League of Legends pro players.
Cassiopeia typically picks up more CS relative to Diana. Champs who typically don't acquire many minion kills often don't have to have much CS to be valuable teammates, such as supports. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, usually require many items to be effective. In either case, try to surpass the numbers displayed on this page to do well.
The best items to use in your Cassiopeia versus Diana build consist of Rylai's Crystal Scepter, Cosmic Drive, and Rod of Ages. When Cassiopeia bought at least these three items in her build, she did a lot better versus Diana than with most other typical counter builds. In fact, Cassiopeia had an average win rate of 50.7% when countering Diana with this build.
To have the greatest likelihood of annihilating Diana 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. Of all the runes players picked for Cassiopeia vs Diana face-offs, this mixture of runes yielded the greatest win rate. In fact, these runes provided a 50.7% winrate overall.
If you would like to view Cassiopeia vs Diana tips and counter builds for a a particular skill level, please choose one from the selection menu above. If viewing for the first time, the stats and build suggestions given are computed using all games finished with both champions.