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.
When Quinn is using Behind Enemy Lines, damaging her removes her Move Speed bonus temporarily.
Keep tabs on Quinn's position. Behind Enemy Lines can enable Valor to cross the map very quickly and attack you by surprise.
After being marked, move away from Quinn so she can't take advantage of it.
The stats provided here feature several valuable Cassiopeia vs. Quinn counter stats that may help us appreciate the distinctions between the pair. As an example, Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is better than Quinn’s ratio of NaN, highlighting that Cassiopeia may be more central to her team's team fighting capability than Quinn..
Cassiopeia often has a similar longest kill spree as her matchup does. Commonly, she takes a similar amount of damage to Quinn. This often reflects differing health capacities, but it can also show that the champ with increased HP has less agility and thus is not able to kite away from additional harm when poked or engaged.
Both LoL champions are great champions. Both champs have their pros and cons. In the game's current meta, Cassiopeia usually wins when playing against Quinn, with a 52.0% win rate. Thus, Cassiopeia makes a good counter to Quinn.
While Cassiopeia does have a higher winrate compared to Quinn, when on opposite teams, Cassiopeia also has a much greater learning curve that makes her a more difficult champ to pick up and master. You should be careful when picking Cassiopeia into Quinnas her relative depth means that you may not be able to unleash her full potential without a lot of practice beforehand.
Furthermore, Cassiopeia also has a good amount of utility and CC, a similar amount to Quinn. This often makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Cassiopeia vs Quinn matchups, Cassiopeia is the better champion with a higher 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 Quinn. You will do well by focussing your gameplay on increasing your CS and taking out objectives. If you are able to do that, you should do very well as Cassiopeia against Quinn.
To learn all of the intricacies of Cassiopeia in order to counter Quinn during both the lane and mid / late game phases of League of Legends, you should keep reading to learn a few extra lessons on this matchup. If you listen to the build and stats presented here, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Cassiopeia typically accumulates a similar amount of CS compared to Quinn. Champs who typically don't take many minion kills typically don't require much CS to be effective, such as sup champs. These kinds of champions are able to scale properly off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, typically need a lot of items to be effective. In either situation, try to do better than the values displayed here to do well.
The most crucial items to focus on in your Cassiopeia versus Quinn build include Liandry's Anguish, Seraph's Embrace, and Rylai's Crystal Scepter. When Cassiopeia used at least these three pieces in her build, she did significantly better against Quinn than with many other typical builds. In fact, Cassiopeia had an average win rate of 52.0% battling Quinn with this build.
To have the highest chance of beating Quinn as Cassiopeia, Cassiopeia players should take the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Of all the rune builds players used for Cassiopeia vs Quinn counter picks, this combination of runes yielded the greatest win rate. In fact, these runes averaged a 52.0% winrate overall.
By default, tips, statistics, and builds on how to beat Quinn as Cassiopeia are presented for all ranked divisions. If you would like to narrow the statistics and builds to a distinct rank, you should use the selection menu located at the top of this page.