Nami's ultimate can come in very handy for initiating on enemies who are far away.
Using Ebb and Flow during an engagement with enemy champions will help sway the battle in your favor.
Aqua Prison has a long cooldown, make sure to use it at the right moment.
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 stat comparisons provided here highlight some vital Nami against Karthus counter statistics that may help us appreciate the distinctions between this pair of champions. As an example, Nami’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Karthus’s KDA ratio of NaN, highlighting that Nami may be more central to her team's team fighting potential than Karthus. This observation is in large part fueled by the differences in assists.
Nami normally has a significantly smaller longest killing spree than her counter does. Typically, she receives less damage than Karthus. This often reflects differing health capacities; however, it can also imply that the one champion has less agility and thus is not able to kite away from further harm when poked or engaged.
Both League of Legends champions are great. Both have their strengths, weaknesses, and counters. In League's current meta, Nami usually fairs equally well when facing off against Karthus, with a 49.2% win rate. Therefore, Nami makes an ok counter for Karthus.
While Nami does have a lower win rate than Karthus, when facing one another, Nami also has a lower difficulty level that makes her a less challenging character to pick up and master. You still need to be cautious when picking Nami into Karthus.
Additionally, Nami has a great deal of utility and CC, a similar amount to Karthus. This often makes her just as valuable during teamfights, especially when fighting champions with a ton of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Nami vs Karthus matchups, Karthus is the better champion with a similar win rate, less champion complexity, and a similar amount of utility to help out your teammates during late stage team fights.
Nami is a somewhat poor counter to Karthus. Make sure you focus your actions on increasing your gold income and clearing objectives. If you do that, you should be able to stand on your own as Nami against Karthus.
To learn all of the intricacies of Nami in order to counter Karthus during both the lane and mid / late game phases of League of Legends, you should keep reading to learn a few extra lessons on this matchup. If you pay attention to the build and suggestions shown above, you should increase your win rate significantly and be closer to League of Legends pro players.
Nami typically picks up a lot less CS as Karthus. Champions who on average don't get much CS typically don't have to have much CS to be effective, such as supports. These kinds of champions are capable of scaling properly off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, usually need a lot of items to be effective. In either case, try to exceed the numbers shown here to do well.
The most important items to focus on in your Nami versus Karthus build include Ardent Censer, Imperial Mandate, and Staff of Flowing Water. When Nami incorporated at least these three items in her build, she did a lot better when fighting Karthus than with many other typical builds. In fact, Nami had an average winrate of 49.2% battling Karthus with these items in her kit.
To have the best likelihood of annihilating Karthus as Nami, you should equip the Summon Aery, Manaflow Band, Transcendence, Scorch, Biscuit Delivery, and Cosmic Insight runes from the Sorcery and Inspiration rune sets. Out of all the rune combinations players used for Nami vs Karthus counter picks, this blending of runes resulted in the greatest win rate. Moreover, these runes averaged a 49.2% win rate overall.
By default, tips, stats, and builds on how to beat Karthus as Nami are given for all skill levels, merged. If you would like to scope the statistics and builds to an individual division, you can use the selection menu at the top of this page.