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 Kassadin Vex synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Vex, 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 very large drop in his KDA (ratio of kills and assists to deaths) when paired with Vex. His KDA worsened from NaN to NaN. This fall shows that Vex helps Kassadin perform worse in ranked League of Legends matches. Yet, the small difference indicates that this performance change is only marginal.
When Kassadin is an ally to Vex, he observes a barely noticable drop in his full damage output. This change may demonstrate that Vex doesn't help cover for him to deal more damage or that their allyship also helps extend the match's duration. Similarly, when Kassadin is played together with Vex on the same team, he usually scores many fewer killing sprees than when he plays without Vex. This is contrasting evidence that he is worse when playing alongside Vex.
Additionally, when Kassadin plays with Vex on the same team, he on average receives a little more damage than when he fights alone. Getting dealt more damage may indicate that Vex does a poor job of protecting Kassadin in team fights.
There is no ideal companion for Kassadin that will 100% of the time be his best synergy. However, Vex is a very bad companion for Kassadin. By playing on the same team as Kassadin, they lowers their win rate by -11.1% to 38.9%. This shows that there is an easy to overcome and exploit bond between Kassadin and Vex that allows them to perform not as well together than alone.
Vex has a much lower diffuclty than Kassadin. That means Kassadin players don't need to be very careful when lining up Vex teammates to go into battle on the same side as, as they will have to have a much lower level of skill to be able to work well with you.
Fighting alongside, Kassadin players will likely see an overall large increase in your team’s capacity to deal magic damage. Together, these champions are able to dish out a surprising amount of magic type damage.
Conversely, by aligning Kassadin and Vex together, you probably will not be giving your side a lot of AD. We recommend you bring other champions on your team that helps cover this hole in this pairing's kit.
Regardless of the skill of your Vex ally, you need to focus on maximizing your income, outlasting your enemies, and clearing objectives. If you follow these simple suggestions, you should do well, regardless.
If you would like to truly master Kassadin to work well with Vex during both the lane and mid / late game phases of League of Legends, you should continue reading to master some more lessons on this champion pairing. If you use the build and tips presented here, you will increase your win rate significantly.
The top finished items to focus on in your Kassadin and Vex synergy build include Seraph's Embrace, Lich Bane, and Malignance. When Kassadin used at least these three items in his build, he performed much better when fighting alongside Vex than with most other common item sets. In fact, Kassadin had an average win rate of 38.9% helping carry Vex with these items in his kit.
To have the highest chance of vanquishing your oponents, Kassadin players should use the Electrocute, Sudden Impact, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Legend: Tenacity runes from the Domination and Precision rune sets. Of all the rune combinations we have analyed for this team composition, this set of runes yielded the best win rate. Moreover, these runes gave a 38.9% win rate overall.
If you need to view Kassadin and Vex synergy tips and stats for a a distinct rank, feel free to select one from the selection menu provided above. If viewing for the first time, the statistics and guides given are calculated using every game run with both champs.