Take advantage of Flurry by weaving in basic attacks between spell casts - this maximizes damage output and minimizes Energy loss.
Self-casting Safeguard and using Iron Will are powerful tools for killing neutral monsters (in the jungle).
Use Sonic Wave before Dragon's Rage so you can chase the target with Resonating Strike.
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.
The Lee Sin Cassiopeia synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Cassiopeia, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Lee Sin sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Cassiopeia. His KDA went down from NaN to NaN. This fall shows that Cassiopeia helps Lee Sin perform worse in competitive LoL matches. Yet, the small difference shows that this performance change is not very impactful.
When Lee Sin is an ally to Cassiopeia, he sees a little increase in his full damage dealt. This difference could demonstrate that Cassiopeia provides cover for him to deal more damage or that her support also helps increase the game's duration. Similarly, when Lee Sin is played together with Cassiopeia on the same side, he usually scores many fewer killing sprees compared to when he plays alone. This is contrasting evidence that he is worse when playing with Cassiopeia.
Additionally, when Lee Sin plays with Cassiopeia on the same side, he often receives a little less damage than when he fights alone. Getting dealt not as much damage may indicate that Cassiopeia does a decent job of protecting Lee Sin during team fights.
There is no one best companion for Lee Sin that will no matter what be his best teammate. However, Cassiopeia is a fantastic teammate for Lee Sin. By locking into the same side as Lee Sin, she raises their win rate by 3.0% to 50.3%. This shows that there is a strong synergy between Lee Sin and Cassiopeia that allows them to perform stronger together than without each other.
Cassiopeia has a much greater difficulty compared to Lee Sin. That means you must be very careful when arranging Cassiopeia allies to fight alongside, as they will require a much greater level of skill to play well with you.
When playing together, you should expect to witness an overall large increase in your team’s capacity to deal magic damage. When paired, these champs can deal quite a lot of AP type damage.
In contrast, by aligning Lee Sin and Cassiopeia together, you will not be providing your other allies very much protection for burst damage. Plan to bring other champions on your team that offsets this relative hole in their capabilities.
Regardless of the skill of your Cassiopeia teammate, you should focus on increasing your gold income, outlasting your enemies, and clearing objectives. If you heed this simple advice, you will do well anyway.
To truly master Lee Sin to pair well with Cassiopeia during both the laning and mid / late game phases of LoL matches, you should keep reading to master additional tricks and insights into this champion pairing. If you mind the build and tips shown here, you will increase your win rate by a lot.
The most crucial finished items to have in your Lee Sin and Cassiopeia synergy build consist of Sterak's Gage, Black Cleaver, and Sundered Sky. When Lee Sin used at least these three pieces in his build, he performed significantly better when paired up with Cassiopeia than with many other common item sets. In fact, Lee Sin boasted an average winrate of 50.3% when synergizing his build and playstyle to Cassiopeia with these items in his kit.
To have the best probability of crushing your oponents, Lee Sin players should equip the Conqueror, Triumph, Legend: Alacrity, Coup de Grace, Cosmic Insight, and Magical Footwear runes from the Precision and Inspiration rune sets. Out of all the rune sets we have analyed for Lee Sin and Cassiopeia pairings, this combo of runes yielded the top win rate. In fact, these runes gave a 50.3% win rate overall.
By default, tips, stats, and builds on how to team up Cassiopeia with Lee Sin are presented for all skill levels, merged. To filter the stats and builds to a specific division, you may use the selection menu located earlier in the counter matchup guide.