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.
When Leona activates Eclipse, you have three seconds to get away from her before she deals damage.
Only foes in the center of Solar Flare get stunned, so you can often avoid this if you're quick.
The stat comparisons provided here underscore some strategic Kassadin vs. Leona matchup stats that may help us figure out the differences and similarities between the pair. As an example, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Leona’s KDA ratio of NaN, highlighting that Kassadin may be more central to his team's team fighting capacity than Leona. This observation is largely a result of the difference in kills.
Kassadin usually has a much larger longest kill spree than his opponent does. On average, he takes more damage than Leona. This is usually reflective of differing health capacities, yet it can also illustrate that the champion with more HP has less mobility and thus is unable to flee from further damage when engaged or poked.
Both League champions are great. Both champs have their pros and cons. In League's current meta, Kassadin usually loses when taking on Leona, with a 46.6% win rate. Therefore, Kassadin makes a bad counter for Leona.
While Kassadin does have a lower win rate compared to Leona, when on opposite teams, Kassadin also has a much greater level of difficulty that makes him a more difficult champ to pick up and master. You should expect to face a difficult match when picking Kassadin into Leonaas his relative depth means that you may not be able to reach his full potential without a lot of practice beforehand.
Additionally, Kassadin has some amount of CC and other utility, a similar amount to Leona. This makes her just as valuable during team fights, especially when trying to counter champions with a lot of burst damage.
While there is not a single best champion for every situation in League of Legends, in Kassadin vs Leona matchups, Leona is the better champion with a much lower win rate, more champion depth, and a similar amount of utility to help out your allies during team fights.
Kassadin is a terribly counter for Leona. Focus your play on increasing your CS and destroying objectives. If you do that, you should do very well as Kassadin against Leona.
To learn all of the intricacies of Kassadin to counter Leona during both the laning and mid / late game phases of League of Legends, you should keep reading to gather a few extra tips and tricks for this matchup. If you pay attention to the build and suggestions displayed here, you will increase your win rate by a lot and be closer to League of Legends pro players.
Kassadin usually racks up much more CS relative to Leona. Champions who typically don't earn many minion kills usualy don't require much CS to be effective, such as sup champs. These kinds of champions are capable of scaling well off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, usually require many items to be effective. In either case, try to surpass the values shown here to do well.
The most crucial items to prioritize in your Kassadin versus Leona build include Rabadon's Deathcap, Malignance, and Rod of Ages. When Kassadin used at least these three items in his build, he did much better against Leona than with most other commonly used builds. In fact, Kassadin had an average winrate of 46.6% when countering Leona with this build.
To have the best probability of annihilating Leona as Kassadin, you should take 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 combinations players chose for Kassadin vs Leona matchups, this combination of runes resulted in the greatest win rate. Moreover, these runes provided a 46.6% win rate overall.
If you want to see Kassadin x Leona tips and builds for a a specific division, feel free to select one from the selection menu shown above. At first, the stats and guides displayed are calculated using all games run with both champions.