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.
Nocturne's Unspeakable Horror is broken with range, so try to save your movement abilities for when he casts it.
Stay close to your allies when Paranoia is cast - there is strength in numbers!
The stat comparisons shown here emphasize several significant Karthus versus Nocturne matchup stats that may help us understand the differences between these two champions. For instance, Karthus’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Nocturne’s KDA ratio of NaN, indicating that Karthus may be more central to his team's team fighting potential than Nocturne..
Karthus normally has a slightly smaller longest killing spree than his opponent does. Commonly, he receives less damage than Nocturne. This typically indicates differing health capacities; however, it can also hint that the one champ has less mobility and thus is unable to kite away from further harm when poked or engaged.
Both League champions are great. Both have their pros and cons. In the game's current meta, Karthus usually loses when playing against Nocturne, with a 47.3% win rate. Thus, Karthus makes a bad counter to Nocturne.
While Karthus does have a lower winrate than Nocturne, when on opposite teams, Karthus also has a much greater difficulty level that makes him a more complex champ to develop with. You should expect to face a difficult match when picking Karthus into Nocturneas his relative depth means you may not be able to unleash his full potential without a significant amount of practice beforehand.
Furthermore, Karthus also has some amount of CC and other utility, a similar amount to Nocturne. This often makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there is not a single best champion in League of Legends, in Karthus vs Nocturne matchups, Nocturne is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your team members during late stage team fights.
Karthus is a garbage counter to Nocturne. Focus your actions on increasing your gold income and taking out objectives. If you are able to do that, you should be able to stand on your own as Karthus against Nocturne.
If you would like to truly master Karthus to counter Nocturne during both the laning and mid / late game phases of League of Legends, you should keep reading to gather a few extra tricks and insights into this matchup. If you pay attention to the build and tips displayed above, you will grow your win rate by a lot and be closer to League of Legends pro players.
Karthus most often accumulates more CS relative to Nocturne. Champions who on average don't get many minion kills often don't need much CS to be valuable teammates, such as support champions. These kinds of champions are able to scale properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often need several high cost items to be effective. In either situation, try to exceed the numbers shown on this page to do well.
The ideal items to have in your Karthus versus Nocturne build include Rabadon's Deathcap, Stormsurge, and Liandry's Torment. When Karthus included at least these three items in his build, he did significantly better versus Nocturne than with most other commonly used builds. In fact, Karthus had an average win rate of 47.3% when playing against Nocturne with this build.
To have the best chance of crushing Nocturne as Karthus, you should equip the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Last Stand runes from the Domination and Precision rune sets. Out of all the rune combinations players chose for Karthus vs Nocturne fights, this mix of runes resulted in the highest win rate. Notably, these runes gave a 47.3% win rate overall.
By default, tips, statistics, and builds on how to beat Nocturne as Karthus are given for all skill levels combined. If you would like to narrow the statistics and builds to a distinct division, you should use the selection menu located above.