Lay Waste is very strong at farming minions and harassing enemy champions.
Ask your allies to help point out when you should use Requiem to get kills in different lanes.
Teemo's Toxic Shot punishes players who get hit and back out, so stay at a safe range until you're ready to commit.
It can be valuable to use Oracle's Lens(Trinket) to destroy mushrooms around key locations.
The stats provided here emphasize some strategic Karthus vs. Teemo matchup statistics that can help us understand the differences between the two. As an example, Karthus’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Teemo’s KDA ratio of NaN, showing that Karthus may be more central to his team's team fighting effectiveness than Teemo..
Karthus usually has a slightly larger longest killing spree than his opponent does. On average, he takes more damage than Teemo. This typically indicates differing health capacities; however, it can also illustrate that the one champ has less agility and thus is unable to kite away from additional harm when poked or engaged.
Both League champions are great champions. Both have their pros and cons. In the game's current meta, Karthus usually loses when taking on Teemo, with a 47.3% win rate. As a result, Karthus makes a poor counter to Teemo.
While Karthus does have a lower winrate than Teemo, when on opposite teams, Karthus also has a greater level of difficulty that makes him a more difficult character to learn. You should expect to face a difficult match when picking Karthus into Teemoas his relative depth means you may not be able to reach his full potential without a lot of practice beforehand.
Moreover, Karthus has some amount of CC and other utility, a similar amount to Teemo. This often makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Karthus vs Teemo matchups, Teemo is the better champ with a lower win rate, more champion depth, and a similar amount of utility to help out your allies during team fights.
Karthus is a garbage counter to Teemo. Make sure you focus your strategy on keeping up your gold and cs and taking out objectives. If you do that, you should do very well as Karthus against Teemo.
If you would like to truly master Karthus to counter Teemo during both the lane and mid / late game phases of League of Legends, you should continue reading to learn a few extra lessons on this matchup. If you listen to the build and stats presented here, you will grow your win rate significantly and be that much closer to League of Legends pro players.
Karthus usually accumulates a similar amount of CS relative to Teemo. Champs who typically don't take much CS typically don't need much CS to be effective, such as support champions. These kinds of champions are capable of scaling properly off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically have to have a lot of items to be effective. In either situation, try to do better than the values displayed on this page to do well.
The best items to use in your Karthus versus Teemo build include Rabadon's Deathcap, Stormsurge, and Liandry's Torment. When Karthus used at least these three pieces in his build, he did significantly better when fighting Teemo than with many other typical counter builds. In fact, Karthus boasted an average win rate of 47.3% when playing against Teemo with this counter build.
To have the highest likelihood of beating Teemo as Karthus, you should use the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Last Stand runes from the Domination and Precision rune sets. Of all the rune sets players chose for Karthus vs Teemo counterpicks, this combination of runes resulted in the highest win rate. Moreover, these runes gave a 47.3% winrate overall.
By default, tips, stats, and builds on how to beat Teemo as Karthus are presented for all skill levels combined. If you want to scope the statistics and builds to a particular player tier, you should use the selection menu located at the top of this page.