Teemo's mushrooms can be used to farm creep waves very effectively.
Place your mushrooms at key locations on the map, such as by the Dragon or Baron Nashor, to reveal when your enemies might be attempting to kill them.
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 shown here clarify several valuable Teemo versus Kassadin counter statistics that may help us understand the differences between this pair of champions. As an example, Teemo’s KDA ratio ([kills + assists] / deaths) of NaN is better than Kassadin’s KDA ratio of NaN, indicating that Teemo may be more central to his team's team fighting capacity than Kassadin..
Teemo typically has a slightly smaller longest killing spree than his matchup does. Typically, he takes less damage than Kassadin. This typically indicates differing health capacities; however, it can also imply that the champion with more HP has less agility and thus is not able to escape additional damage when engaged or poked.
Both LoL champs are great. Both champs have their pros and cons. In the game's current meta, Teemo usually wins when facing off against Kassadin, with a 52.2% win rate. Thus, Teemo makes a good counter to Kassadin.
While Teemo does have a higher winrate compared to Kassadin, when facing one another, Teemo also has a lower level of difficulty that makes him a less complex champion to learn and master. You don't need to be too worried when picking Teemo into Kassadin.
Additionally, Teemo has some 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 in League of Legends, in Teemo vs Kassadin matchups, Teemo is the better champion with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your teammates during late stage team fights.
Teemo is a good counter to Kassadin. Make sure you focus your play on increasing your gold and cs and destroying objectives. If you can do that, you should do very well as Teemo against Kassadin.
To truly master Teemo to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tricks and insights into this matchup. If you listen to the build and suggestions presented above, you will grow your win rate significantly and be closer to League of Legends pro players.
Teemo most often racks up a similar amount of CS relative to Kassadin. Champs who typically don't earn much CS usualy don't need much CS to be effective, such as support champions. They are able to scale properly off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, usually need several high cost items to be effective. In either case, try to surpass the numbers displayed here to do well.
The most important items to prioritize in your Teemo versus Kassadin build consist of Malignance, Stormsurge, and Liandry's Torment. When Teemo used at least these three items in his build, he did significantly better countering Kassadin than with many other typical counter builds. In fact, Teemo boasted an average winrate of 52.2% battling Kassadin with this counter build.
To have the best chance of defeating Kassadin as Teemo, you should equip the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Gathering Storm, and Transcendence runes from the Domination and Sorcery rune sets. Of all the rune builds players chose for Teemo vs Kassadin counterpicks, this blending of runes resulted in the best win rate. Notably, these runes averaged a 52.2% win rate overall.
By default, tips, stats, and builds on how to beat Kassadin as Teemo are displayed for all skill levels combined. If you want to narrow the statistics and builds to an individual skill level, you may use the selection menu located earlier on the page.