Make the most out of your Icathian Surprise.
Use Void Ooze to set up a perfect Living Artillery.
Kog'Maw can outrange most champions with his Bio-Arcane Barrage ability.
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 stats provided here show several important Kog'Maw against Kassadin counter statistics that may help us explain the differences between the two. Kog'Maw’s KDA ratio ([kills + assists] / deaths) of NaN is better than Kassadin’s ratio of NaN, indicating that Kog'Maw may be more central to his team's team fighting capability than Kassadin..
Kog'Maw usually has a similar longest kill spree as his opponent does. On average, he receives less damage than Kassadin. This commonly reflects different amounts of tankyness, but it can also show that the one champion has less mobility and thus is not able to flee from further harm when poked or engaged.
Both LoL champions are great champions. Both have their strengths, weaknesses, and counters. In League's current meta, Kog'Maw usually fairs equally well when facing off against Kassadin, with a 49.2% win rate. As a result, Kog'Maw makes an ok counter for Kassadin.
While Kog'Maw does have a lower win rate compared to Kassadin, when they face off with one another, Kog'Maw also has a lower learning curve that makes him a less time consuming champion to learn and master. You should be careful when picking Kog'Maw into Kassadin.
Additionally, Kog'Maw has almost no amount of utility and CC, a similar amount to Kassadin. 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 one best champion overall in League of Legends, in Kog'Maw vs Kassadin matchups, Kassadin is the better champ with a similar win rate, less champion complexity, and a similar amount of utility to help out your allied champions during teamfights.
Kog'Maw is a somewhat poor counter to Kassadin. Focus your gameplay on keeping up your gold and cs and clearing objectives. If you are able to do that, you should do very well as Kog'Maw against Kassadin.
If you would like to learn all of the intricacies of Kog'Maw in order to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should keep reading to pick up a few extra tips and tricks for this matchup. If you listen to the build and stats displayed here, you will increase your win rate by a lot and be closer to League of Legends pro players.
Kog'Maw on average racks up a similar amount of CS as Kassadin. Champs who on average don't take many minion kills often don't have to have much CS to be effective, such as support champions. They are capable of scaling well off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually require several high cost items to be effective. In either situation, try to do better than the numbers reported on this page to do well.
The most important items to have in your Kog'Maw versus Kassadin build include Runaan's Hurricane, Guinsoo's Rageblade, and Blade of The Ruined King. When Kog'Maw combined at least these three items in his build, he performed a lot better when fighting Kassadin than with many other common builds. In fact, Kog'Maw had an average winrate of 49.2% when countering Kassadin with these items in his kit.
To have the best probability of coming out on top against Kassadin as Kog'Maw, you should take the Lethal Tempo, Triumph, Legend: Bloodline, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Out of all the rune builds players picked for Kog'Maw vs Kassadin face-offs, this sequence of runes yielded the highest win rate. Notably, these runes averaged a 49.2% win rate overall.
If you need to get Kog'Maw versus Kassadin tips and matchup stats and build suggestions for a a particular rank, please choose one from the selection menu above. By default, the statistics and guides shown are computed using every match completed with these champs.