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.
Be wary of Cassiopeia's damage potential with Twin Fang when she has you poisoned.
Turn away from Cassiopeia when she is casting Petrifying Gaze to get slowed instead of stunned.
The stats shown here show several critical Teemo against Cassiopeia counter statistics that can help us explain the distinctions between the pair. As an example, Teemo’s KDA ratio ([kills + assists] / deaths) of NaN is better than Cassiopeia’s ratio of NaN, showing that Teemo may be more central to his team's team fighting effectiveness than Cassiopeia..
Teemo typically has a slightly smaller longest kill spree than his foe does. Commonly, he takes less damage than Cassiopeia. This typically indicates different amounts of tankyness; however, it can also hint that the champion with more HP has less mobility and thus is unable to escape further damage when engaged or poked.
Both League champions are great champions. Both have their pros and cons. In League's current meta, Teemo usually wins when playing against Cassiopeia, with a 52.1% win rate. As a result, Teemo makes a good counter to Cassiopeia.
While Teemo does have a higher win rate compared to Cassiopeia, when they face off with one another, Teemo also has a much lower learning curve that makes him a less time consuming champion to learn. You don't need to be too worried when picking Teemo into Cassiopeia.
Moreover, Teemo has some amount of CC and other utility, a similar amount to Cassiopeia. This often makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there isn't a single best champion overall in League of Legends, in Teemo vs Cassiopeia 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 allied champions during teamfights.
Teemo is a good counter for Cassiopeia. Make sure you focus your strategy on keeping up your CS and clearing objectives. If you do that, you should do very well as Teemo against Cassiopeia.
To truly master Teemo in order to counter Cassiopeia during both the laning and mid / late game phases of League of Legends, you should continue reading to learn a few extra tips and tricks for this matchup. If you mind the build and tips shown above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Teemo usually picks up a similar amount of CS relative to Cassiopeia. Champions who on average don't acquire much CS typically don't require much CS to be valuable teammates, such as supports. These kinds of champions are capable of scaling properly off of their skills, stats, and first items alone. Yet, champs with a lot of CS, such as hyper-carries, typically require many items to be effective. In either situation, try to surpass the numbers reported on this page to do well.
The most important items to use in your Teemo versus Cassiopeia build include Rabadon's Deathcap, Nashor's Tooth, and Liandry's Torment. When Teemo combined at least these three items in his build, he did a lot better versus Cassiopeia than with most other commonly used item sets. In fact, Teemo boasted an average winrate of 52.1% battling Cassiopeia with this counter build.
To have the greatest probability of crushing Cassiopeia as Teemo, Teemo players should use the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Gathering Storm, and Transcendence runes from the Domination and Sorcery rune sets. Out of all the rune builds players picked for Teemo vs Cassiopeia counterpicks, this combination of runes resulted in the greatest win rate. Moreover, these runes provided a 52.1% win rate overall.
By default, tips, statistics, and builds on how to beat Cassiopeia as Teemo are shown for all skill levels combined. To narrow the statistics and builds to a particular division, you should use the selection menu located earlier on the page.