If you're in a lane against ranged players, leveling up Meditate can allow you to stay in the lane longer and gain levels faster than they will.
Try using Alpha Strike on a minion in front of an enemy champion so you are placed at a safe distance at the end of the spell.
Wuju Style is very strong early for last hitting minions.
Kassadin's ultimate has many uses and is on a shorter cooldown than most, use it often.
Kassadin has multiple item paths; he can go caster via Mana and Ability Power or anti-caster with Cooldown Reduction and Magic Resist.
Try to get the Ancient Golem buff to counteract Riftwalk's increasing Mana cost.
The Master Yi Kassadin synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Kassadin, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Master Yi sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Kassadin. His KDA fell from NaN to NaN. This negative change shows that Kassadin helps Master Yi perform worse in competitive League rounds. Yet, the small difference shows that this performance change is only marginal.
When Master Yi is an ally to Kassadin, he gets a little drop in his complete damage dealt. This may signal that Kassadin does not support by providing protection for him to deal more damage or that his presence on the team also helps extend the round's duration. Similarly, when Master Yi is played together with Kassadin on the same team, he usually scores many fewer killing sprees than when he plays without Kassadin. This is contrasting evidence that he is worse when playing synergisticly with Kassadin.
Additionally, when Master Yi plays with Kassadin on the same team, he typically receives a little less damage than when he fights alone. Receiving not as much damage may indicate that Kassadin does a decent job of covering Master Yi during teamfights.
There is no one best companion for Master Yi that will 100% of the time be his top synergy. However, Kassadin is a below average companion for Master Yi. By playing on the same side as Master Yi, he drops their win rate by -1.1% to 49.5%. This proves that there is a negative synergy between Master Yi and Kassadin that results in them performing worse together than alone.
Kassadin has a much greater difficulty compared to Master Yi. That means Master Yi players need to be cautious when finding Kassadin teammates to fight alongside, as they will need a much higher level of skill to cooperate well with you.
Fighting together, Master Yi players should expect to observe an overall large increase in your team’s capability to dish out massive AD. Together, these champions can tear through the other team with a lot of physcial damage.
Although, by bringing Master Yi and Kassadin together, you may not be providing your other allies very much utility. Plan to pick other champions on your team that nullifies this gap in their kit.
Regardless of the ability of your Kassadin ally, you should focus on increasing your gold income, staying alive by avoiding foolish fights, and taking down objectives. If you heed this simple advice, you will do well, regardless.
If you would like to learn all of the intricacies of Master Yi to pair well with Kassadin during both the lane and mid / late game phases of League of Legends rounds, you should keep reading to learn some more tricks and insights into this champion pairing. If you use the build and stats displayed above, you should grow your win rate by a lot.
The top finished items to have in your Master Yi and Kassadin synergy build include Wit's End, Guinsoo's Rageblade, and Kraken Slayer. When Master Yi combined at least these three pieces in his build, he performed a lot better as an ally of Kassadin than with many other typical builds. In fact, Master Yi had an average winrate of 49.5% when synergizing his build and playstyle to Kassadin with this build.
To have the greatest likelihood of defeating your oponents, you should use the Lethal Tempo, Triumph, Legend: Alacrity, Coup de Grace, Eyeball Collection, and Relentless Hunter runes from the Precision and Domination rune sets. Of all the runes players chose for this team composition, this mix of runes yielded the greatest win rate. Notably, these runes gave a 49.5% winrate overall.
By default, tips, stats, and builds on how to pair Kassadin with Master Yi are displayed for all ranked divisions. If you want to scope the statistics and builds to a distinct player tier, you may use the selection menu located earlier in the counter matchup guide.