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.
Orianna can only affect the area the Ball is around. Use this to your advantage.
Watch out for Orianna's Ball returning to her due to leashing. This may cause some unexpected situations.
The stat comparisons shown here highlight several valuable Cassiopeia versus Orianna matchup statistics that can help us distinguish the differences and similarities between the two. Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is better than Orianna’s ratio of NaN, highlighting that Cassiopeia may be more central to her team's team fighting capacity than Orianna..
Cassiopeia typically has a similar longest killing spree as her opponent does. Commonly, she takes more damage than Orianna. This is usually reflective of different amounts of tankyness, but it can also indicate that the champ with more HP has less agility and thus is not able to escape additional damage when engaged or poked.
Both LoL champions are great champions. Both champs have their pros and cons. In the game's current meta, Cassiopeia usually loses when playing against Orianna, with a 46.0% win rate. As a result, Cassiopeia makes a poor counter to Orianna.
While Cassiopeia does have a lower win rate than Orianna, when on opposite teams, Cassiopeia also has a much greater level of difficulty that makes her a more challenging character to pick up and master. You may get destroyed when picking Cassiopeia into Oriannaas her relative depth means that you may not be able to unleash her full potential without a significant amount of practice beforehand.
Furthermore, Cassiopeia also has a good amount of CC and other utility, a similar amount to Orianna. This makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there isn't one best champion for every situation in League of Legends, in Cassiopeia vs Orianna matchups, Orianna is the better champion with a much lower win rate, more champion depth, and a similar amount of utility to help out your allies during team fights.
Cassiopeia is a terribly counter for Orianna. You will do well by focussing your gameplay on keeping up your CS and destroying objectives. If you are able to do that, you should be able to stand on your own as Cassiopeia against Orianna.
If you would like to learn all of the intricacies of Cassiopeia in order to counter Orianna during both the early game and mid / late game phases of League of Legends, you should keep reading to learn a few extra tips and tricks for this matchup. If you listen to the build and stats displayed here, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Cassiopeia most often accumulates a similar amount of CS compared to Orianna. Champions who on average don't get many minion kills usualy don't require much CS to be valuable teammates, such as supports. They are capable of scaling properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, typically require a lot of items to be effective. In either situation, try to surpass the numbers reported here to do well.
The ideal items to use in your Cassiopeia versus Orianna build include Liandry's Anguish, Seraph's Embrace, and Rylai's Crystal Scepter. When Cassiopeia incorporated at least these three items in her build, she performed significantly better versus Orianna than with most other typical builds. In fact, Cassiopeia boasted an average winrate of 46.0% when playing against Orianna with these items in her kit.
To have the highest probability of defeating Orianna as Cassiopeia, you should equip the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Out of all the runes players picked for Cassiopeia vs Orianna counterpicks, this combo of runes yielded the best win rate. Notably, these runes provided a 46.0% win rate overall.
If you want to view Cassiopeia x Orianna tips and counter builds for a an individual skill level, feel free to select one from the selection menu shown above. If viewing for the first time, the stats and build suggestions shown are calculated using all rounds with data with both champions.