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.
Riven lacks a source of healing or strong defense and must compensate with burst combos. Lead into fights with Broken Wings and Ki Burst, while using Valor to escape and absorb counter-harass.
Riven's Broken Wings locks onto the champion your cursor is over at the time of cast. If you want to move past your opponent, make sure that your cursor is past your opponent as well.
The Kassadin Riven synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Riven, 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 Riven. His KDA went down from NaN to NaN. This decrease shows that Riven helps Kassadin perform worse in competitive LoL games. Yet, the small difference indicates that this performance change is not very impactful.
When Kassadin plays on the same team as Riven, he sees a barely noticable drop in his total damage dealt. This could signal that Riven does not help protection for him to deal more damage or that her presence on the team also helps extend the round's duration. Similarly, when Kassadin is played alongside Riven on the same team, he usually scores many fewer killing sprees than when he plays without Riven. This is contrasting evidence that he is worse when playing synergisticly with Riven.
Additionally, when Kassadin plays with Riven on the same side, he on average takes a little less damage than when he plays alone. Receiving not as much damage may indicate that Riven does a decent job of protecting Kassadin during teamfights.
There is no perfect ally for Kassadin that will always be his top teammate. However, overall, Riven is a relatively poor teammate for Kassadin. By playing on the same team as Kassadin, she lowers their win rate by -1.3% to 48.7%. This clearly indicates that there is a bad strategic relationship between Kassadin and Riven that allows them to perform not as well together than without each other.
Riven has a lower difficulty than Kassadin. That means you don't need to be careful when lining up Riven comrades to fight alongside, as they will need a lower level of skill to fight well with you.
Working on the same side, Kassadin players will likely witness an overall large increase in your team’s capacity to dish out massive AD. Combined, these champs can provide a great amount of sustained physical damage.
Conversely, by grouping Kassadin and Riven together, you probably will not be granting your side a lot of support. We recommend you bring other champions on your team that neutralizes this gap in this pairing's capabilities.
Regardless of the skill of your Riven ally, you should focus on maximizing your gold income, staying alive by avoiding foolish fights, and clearing objectives. If you follow these simple suggestions, you should do well, regardless.
If you would like to truly master Kassadin in order to pair well with Riven during both the laning and mid / late game phases of LoL, you should keep reading to gather a few extra tips and tricks for this champion pairing. If you pay attention to the build and tips presented above, you will grow your win rate significantly.
The most crucial items to have in your Kassadin and Riven synergy build consist of Seraph's Embrace, Void Staff, and Rod of Ages. When Kassadin used at least these three pieces in his build, he did a lot better when paired up with Riven than with many other common item sets. In fact, Kassadin had an average win rate of 48.7% when synergizing his build and playstyle to Riven with these items in his kit.
To have the greatest probability of coming out on top against your oponents, Kassadin players 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 players used for Kassadin and Riven pairings, this mixture of runes yielded the best win rate. Moreover, these runes averaged a 48.7% win rate overall.
If you need to view Kassadin and Riven synergy tips and stats for a an individual rank, feel free to choose one from the selection menu provided above. If viewing for the first time, the stats and strategies given are calculated using every round finished with both champions.