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.
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.
The Kassadin Master Yi synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Master Yi, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Kassadin sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Master Yi. His KDA worsened from NaN to NaN. This negative change shows that Master Yi helps Kassadin perform worse in ranked League rounds. Yet, the small difference proves that this performance change is only marginal.
When Kassadin is an ally to Master Yi, he gets a noticable drop in his total damage output. This change could demonstrate that Master Yi does not provide cover for him to deal more damage or that his support also helps extend the round's duration. Similarly, when Kassadin is played with Master Yi on the same side, he usually scores many fewer killing sprees than when he plays alone. This is contrasting evidence that he is worse when playing with Master Yi.
Moreover, when Kassadin plays with Master Yi on the same team, he typically takes a little less damage than when he plays alone. Receiving not as much damage may mean that Master Yi does a decent job of protecting Kassadin in team fights.
There is no one best champion pairing for Kassadin that will always be his ideal synergy. Yet, Master Yi is a very typical teammate for Kassadin. By being on the same side as Kassadin, he decreases their win rate by -0.5% to 49.5%. This clearly indicates that there is a weak bond between Kassadin and Master Yi that results in them performing not as well together than without each other.
Master Yi has a much lower diffuclty than Kassadin. That means you don't need to be very careful when enlisting Master Yi comrades to go into battle on the same side as, as they will require a much lower level of skill to be able to work well with you.
When playing cooperatively, you should observe an overall large increase in your team’s capacity to destroy wih physical damage. Together, these two can provide a great amount of sustained physical damage.
In contrast, by aligning Kassadin and Master Yi together, you probably will not be giving your side very much crowd control. We recommend you pick other champs on your team that helps cover this relative gap in their abilities.
Regardless of your Master Yi ally's ability, you need to focus on increasing your income, staying alive by avoiding foolish fights, and clearing objectives. If you do this, you will do well, regardless.
If you would like to learn all of the intricacies of Kassadin to synergize with Master Yi during both the laning and mid / late game phases of League rounds, you should continue reading to gather additional tricks and insights into this champion pairing. If you listen to the build and tips shown here, you will grow your win rate significantly.
The ideal items to have in your Kassadin and Master Yi synergy build consist of Rabadon's Deathcap, Malignance, and Rod of Ages. When Kassadin used at least these three items in his build, he performed much better when paired up with Master Yi than with most other commonly used item sets. In fact, Kassadin boasted an average winrate of 49.5% when synergizing his build and playstyle to Master Yi with these items in his kit.
To have the greatest chance of coming out on top against your oponents, you should use the First Strike, Magical Footwear, Future's Market, Cosmic Insight, Sudden Impact, and Ultimate Hunter runes from the Inspiration and Domination rune sets. Out of all the rune builds that we analyzed for this team composition, this sequence of runes yielded the top win rate. Moreover, these runes provided a 49.5% winrate overall.
If you want to see Kassadin with Master Yi collaboration tips and builds for a a specific player tier, feel free to choose one from the selection menu above. If viewing for the first time, the stats and guides given are calculated using all games run with both champs.