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.
Try to stay away from walls. Ornn is much less strong if he cannot stun you.
Attack Ornn to keep him from creating items in lane.
The stats shown on this page emphasize some strategic Cassiopeia against Ornn matchup stats that may help you appreciate the differences between the two. As an example, Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is better than Ornn’s KDA ratio of NaN, indicating that Cassiopeia may be more central to her team's team fighting effectiveness than Ornn..
Cassiopeia normally has a slightly larger longest killing spree than her opponent does. On average, she receives less damage than Ornn. This typically indicates differing health capacities; however, it can also indicate that the one champ has less agility and thus is unable to kite away from additional damage when engaged or poked.
Both LoL champs are great champions. Both have their pros and cons. In the game's current meta, Cassiopeia usually fairs equally well when taking on Ornn, with a 50.5% win rate. Thus, Cassiopeia makes an ok counter to Ornn.
While Cassiopeia does have a higher win rate compared to Ornn, when they face off with one another, Cassiopeia also has a much greater difficulty level that makes her a more challenging champ to learn and master. You still need to be cautious when picking Cassiopeia into Ornnas her relative depth means you may not be able to reach her full potential without a lot of practice beforehand.
Furthermore, Cassiopeia has a good amount of utility and CC, a similar amount to Ornn. This makes her just as valuable during team fights, especially when trying to counter champions with a ton of burst damage.
While there is not one best champion for every situation in League of Legends, in Cassiopeia vs Ornn 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 team fights.
Cassiopeia is a decent counter to Ornn. Focus your gameplay on keeping up your gold and cs and clearing objectives. If you can do that, you should be able to stand on your own as Cassiopeia against Ornn.
If you would like to learn all of the intricacies of Cassiopeia to counter Ornn during both the laning 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 listen to the build and stats displayed above, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Cassiopeia on average racks up a similar amount of CS as Ornn. Champions who typically don't acquire many minion kills often don't need much CS to be valuable teammates, such as sup champs. 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, often need a lot of items to be effective. In either situation, try to exceed the values displayed on this page to do well.
The ideal items to have in your Cassiopeia versus Ornn build consist of Seraph's Embrace, Rylai's Crystal Scepter, and Rod of Ages. When Cassiopeia bought at least these three items in her build, she did a lot better vs Ornn than with most other commonly used counter builds. In fact, Cassiopeia boasted an average winrate of 50.5% when playing against Ornn with these items in her kit.
To have the greatest chance of annihilating Ornn as Cassiopeia, Cassiopeia players should use 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 rune sets we have analyed for Cassiopeia vs Ornn counter picks, this set of runes yielded the best win rate. Moreover, these runes gave a 50.5% winrate overall.
If you need to get Cassiopeia vs Ornn tips and builds for a a specific rank, please choose one from the selection menu displayed above. By default, the statistics and build suggestions displayed are calculated using all rounds finished with these champions.