Be wary of Cassiopeia's damage potential with Twin Fang when she has you poisoned.
Turn away from Cassiopeia when she is casting Petrifying Gaze to get slowed instead of stunned.
The stat comparisons provided here feature several important Samira vs. Cassiopeia counter statistics that can help you explain the differences and similarities between the two. Samira’s KDA ratio ([kills + assists] / deaths) of NaN is better than Cassiopeia’s ratio of NaN, highlighting that Samira may be more central to her team's team fighting capacity than Cassiopeia..
Samira often has a slightly larger longest killing spree than her enemy does. Commonly, she takes a similar amount of damage to Cassiopeia. This commonly reflects different amounts of tankyness, yet it can also imply that the champion with increased HP has less mobility and thus is not able to kite away from further harm when engaged or poked.
Both League champs are great champions. Both have their pros and cons. In the game's current meta, Samira usually loses when trying to fight Cassiopeia, with a 48.2% win rate. Thus, Samira makes a bad counter for Cassiopeia.
While Samira does have a lower winrate compared to Cassiopeia, when on opposite teams, Samira also has a much lower learning curve that makes her a less difficult champ to learn. You should be careful when picking Samira into Cassiopeia.
Moreover, Samira has only a small amount of utility and CC, a similar amount to Cassiopeia. This makes her just as valuable during teamfights, especially when fighting champions with a lot of burst damage.
While there is not a single best champion for every situation in League of Legends, in Samira vs Cassiopeia matchups, Cassiopeia is the better champion with a lower win rate, less champion complexity, and a similar amount of utility to help out your teammates during late stage team fights.
Samira is a somewhat poor counter to Cassiopeia. Make sure you focus your tactics on keeping up your gold and cs and clearing objectives. If you can do that, you should hold your own as Samira against Cassiopeia.
To truly master Samira to counter Cassiopeia during both the laning and mid / late game phases of League of Legends, you should keep reading to gather a few extra tips and tricks for this matchup. If you listen to the build and stats displayed here, you should grow your win rate significantly and be that much closer to League of Legends pro players.
Samira on average picks up a similar amount of CS as Cassiopeia. Champions who on average don't take much CS often don't have to have much CS to be valuable teammates, such as supports. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, typically have to have several high cost items to be effective. In either case, try to do better than the numbers shown here to do well.
The top items to focus on in your Samira versus Cassiopeia build consist of Infinity Edge, Bloodthirster, and Immortal Shieldbow. When Samira included at least these three items in her build, she did significantly better countering Cassiopeia than with most other commonly used item sets. In fact, Samira boasted an average win rate of 48.2% battling Cassiopeia with these items in her kit.
To have the highest chance of annihilating Cassiopeia as Samira, Samira players should use the Conqueror, Triumph, Legend: Bloodline, Last Stand, Bone Plating, and Revitalize runes from the Precision and Resolve rune sets. Of all the rune combinations players used for Samira vs Cassiopeia battles, this order of runes yielded the greatest win rate. In fact, these runes averaged a 48.2% winrate overall.
If you would like to get Samira versus Cassiopeia tips and counter builds for a a distinct rank, feel free to choose one from the selection menu above. By default, the stats and build suggestions displayed are computed using all games run with both champs.