Sivir's Boomerang Blade returns to her after reaching the max range, so you can shift position to hit enemies who would otherwise have evaded it.
Try saving Spell Shield for enemy abilities that can disable you such as stuns and roots.
Ricochet resets Sivir's basic attack timer on activation, so activating this immediately after landing a normal basic attack will maximize damage output.
It takes 6 spell casts for Kassadin's slow, Force Pulse, to become castable. If he levels up that ability, judiciously use your own skills while laning against him.
Kassadin deals mostly magic damage. If he's doing well consider buying magic resist items like Mercury's Treads and Banshee's Veil.
Each time Kassadin consecutively uses Riftwalk, he pays more and more mana. Keep this in mind as you chase him.
The stat comparisons shown here underscore several critical Sivir against Kassadin counter stats that can help you understand the differences between this set of champions. Sivir’s KDA ratio ([kills + assists] / deaths) of NaN is better than Kassadin’s KDA ratio of NaN, demonstrating that Sivir may be more central to her team's team fighting effectiveness than Kassadin..
Sivir often has a slightly smaller longest kill spree than her opponent does. On average, she receives less damage than Kassadin. This is usually reflective of differing health capacities, yet it can also show that the champion with more health has less agility and thus is not able to kite away from further damage when engaged or poked.
Both League champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Sivir usually loses when facing off against Kassadin, with a 47.4% win rate. Therefore, Sivir makes a bad counter for Kassadin.
While Sivir does have a lower win rate compared to Kassadin, when they face off with one another, Sivir also has a much lower level of difficulty that makes her a less complex champ to pick up and master. You should be very concerned when picking Sivir into Kassadin.
Furthermore, Sivir also has almost no amount of utility and CC, a similar amount to Kassadin. This makes her just as valuable during teamfights, especially when facing champions with a ton of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Sivir vs Kassadin matchups, Kassadin is the better champ with a lower win rate, less champion complexity, and a similar amount of utility to help out your teammates during team fights.
Sivir is a terribly counter for Kassadin. Make sure you focus your gameplay on maximizing your gold income and clearing objectives. If you are able to do that, you should hold your own as Sivir against Kassadin.
If you would like to truly master Sivir to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should keep reading to learn a few extra lessons on this matchup. If you listen to the build and suggestions shown above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Sivir often racks up a similar amount of CS as Kassadin. Champions who on average don't earn many minion kills often don't require much CS to be valuable teammates, such as support champions. 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 have to have many items to be effective. In either situation, try to do better than the values reported on this page to do well.
The most important items to focus on in your Sivir versus Kassadin build consist of Bloodthirster, Kraken Slayer, and Navori Quickblades. When Sivir incorporated at least these three items in her build, she did much better when facing Kassadin than with most other typical builds. In fact, Sivir boasted an average win rate of 47.4% battling Kassadin with this counter build.
To have the highest probability of coming out on top against Kassadin as Sivir, Sivir players should take the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Biscuit Delivery, and Magical Footwear runes from the Precision and Inspiration rune sets. Out of all the rune builds we have analyed for Sivir vs Kassadin matchups, this mix of runes yielded the highest win rate. Moreover, these runes averaged a 47.4% winrate overall.
By default, tips, statistics, and builds on how to beat Kassadin as Sivir are shown for all ranked divisions. If you would like to scope the statistics and builds to a distinct rank, you should use the selection menu at the top of this page.