Karthus can cast spells for a short duration after he is killed. Move away from his corpse to be safe.
Make sure you always have enough health to survive Requiem, even if you have to go back to the base more frequently to heal.
The stats provided here emphasize some strategic Samira against Karthus matchup statistics that may help you interpret the distinctions between this pair of champions. Samira’s KDA ratio ([kills + assists] / deaths) of NaN is better than Karthus’s KDA ratio of NaN, showing that Samira may be more central to her team's team fighting capacity than Karthus..
Samira typically has a slightly larger longest kill spree than her matchup does. Typically, she receives a similar amount of damage to Karthus. This often reflects differing health capacities, yet it can also illustrate that the one champion has less agility and thus is unable to escape further harm when engaged or poked.
Both League of Legends champions are great champions. Both champs have their strengths, weaknesses, and counters. In League's current meta, Samira usually loses when playing against Karthus, with a 48.8% win rate. As a result, Samira makes a bad counter to Karthus.
While Samira does have a lower winrate than Karthus, when they face off with one another, Samira also has a lower level of difficulty that makes her a less difficult champ to learn and master. You should be careful when picking Samira into Karthus.
Additionally, Samira also has only a small amount of CC and other utility, a similar amount to Karthus. This 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 for every situation in League of Legends, in Samira vs Karthus matchups, Karthus is the better champ with a lower win rate, less champion complexity, and a similar amount of utility to help out your allies during late stage team fights.
Samira is a somewhat poor counter for Karthus. Focus your tactics on maximizing your gold and cs and clearing objectives. If you are able to do that, you should hold your own as Samira against Karthus.
To learn all of the intricacies of Samira in order to counter Karthus during both the early game 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 tips presented above, you will increase your win rate by a lot and be closer to League of Legends pro players.
Samira typically picks up more CS as Karthus. Champs who on average don't earn many minion kills often don't have to have much CS to be valuable teammates, such as sup champs. 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, typically require several high cost items to be effective. In either case, try to exceed the values shown here to do well.
The ideal items to use in your Samira versus Karthus build consist of Guardian Angel, Infinity Edge, and The Collector. When Samira combined at least these three pieces in her build, she did much better versus Karthus than with many other typical counter builds. In fact, Samira had an average win rate of 48.8% battling Karthus with these items in her kit.
To have the best chance of crushing Karthus as Samira, Samira players should equip the Conqueror, Triumph, Legend: Bloodline, Last Stand, Taste of Blood, and Treasure Hunter runes from the Precision and Domination rune sets. Of all the rune builds players picked for Samira vs Karthus counters, this composite of runes resulted in the greatest win rate. Moreover, these runes provided a 48.8% winrate overall.
By default, tips, stats, and builds on how to beat Karthus as Samira are shown for all skill levels combined. To scope the statistics and builds to a specific division, you can use the selection menu earlier on the page.