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.
Rengar's passive enables him to leap out of brush, so avoid fighting him when near bushes.
Rengar puts an indicator over the nearest enemy champion when he is camouflaged during his ultimate.
Rengar gains an empowered ability when his resource bar is full. Try to confront him when it's low.
The stats provided here emphasize several significant Cassiopeia vs. Rengar matchup statistics that may help us figure out the differences and similarities between this set of champions. Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is more than Rengar’s KDA ratio of NaN, indicating that Cassiopeia may be more central to her team's team fighting effectiveness than Rengar..
Cassiopeia usually has a slightly smaller longest killing spree than her matchup does. Typically, she receives less damage than Rengar. This often reflects differing health capacities; however, it can also indicate that the champ with higher HP has less mobility and thus is unable to escape additional harm when engaged or poked.
Both LoL champions are great champions. Both have their pros and cons. In League's current meta, Cassiopeia usually fairs equally well when facing off against Rengar, with a 49.3% win rate. Thus, Cassiopeia makes an ok counter to Rengar.
While Cassiopeia does have a lower win rate than Rengar, when on opposite teams, Cassiopeia also has a greater difficulty level that makes her a more challenging champion to pick up and master. You should be careful when picking Cassiopeia into Rengaras her relative depth means you may not be able to unleash her full potential without a significant amount of practice beforehand.
Furthermore, Cassiopeia has a good amount of utility and CC, a similar amount to Rengar. This often makes her just as valuable during team fights, especially when facing champions with a ton of burst damage.
While there isn't a single best champion in League of Legends, in Cassiopeia vs Rengar matchups, Rengar is the better champion with a similar win rate, more champion depth, and a similar amount of utility to help out your allies during teamfights.
Cassiopeia is a somewhat poor counter to Rengar. Make sure you focus your tactics on maximizing your gold income and clearing objectives. If you can do that, you should be able to stand on your own as Cassiopeia against Rengar.
If you would like to truly master Cassiopeia to counter Rengar during both the early game and mid / late game phases of League of Legends, you should continue reading to learn a few extra tips and tricks for this matchup. If you listen to the build and stats shown here, you should increase your win rate by a lot and be that much closer to League of Legends pro players.
Cassiopeia most often accumulates much more CS relative to Rengar. Champs who on average don't acquire much CS usualy don't need much CS to be valuable teammates, such as sup champs. They are able to scale well off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, typically have to have several high cost items to be effective. In either case, try to surpass the numbers displayed on this page to do well.
The best items to prioritize in your Cassiopeia versus Rengar build include Seraph's Embrace, Rylai's Crystal Scepter, and Zhonya's Hourglass. When Cassiopeia used at least these three items in her build, she did a lot better against Rengar than with most other commonly used item sets. In fact, Cassiopeia had an average win rate of 49.3% battling Rengar with this build.
To have the highest likelihood of defeating Rengar as Cassiopeia, Cassiopeia players 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 rune combinations players chose for Cassiopeia vs Rengar counters, this composite of runes resulted in the best win rate. Moreover, these runes averaged a 49.3% winrate overall.
By default, tips, stats, and builds on how to beat Rengar as Cassiopeia are shown for all skill levels combined. If you want to filter the statistics and builds to a distinct skill level, you should use the selection menu at the top of this page.