While ganking, consider aiming Dredge Line at nearby terrain and following it up with Riptide for a higher hit rate.
Riptide has a delayed blast timing on activation - you can use this while running away or when enemies are incoming to serve as a deterrent.
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 feature some significant Nautilus versus Karthus matchup statistics that may help us grasp the differences and similarities between these two champions. For instance, Nautilus’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Karthus’s KDA ratio of NaN, highlighting that Nautilus may be more central to his team's team fighting capacity than Karthus. This observation is in large part fueled by the differences in assists.
Nautilus often has a significantly smaller longest killing spree than his foe does. On average, he takes less damage than Karthus. This is usually reflective of different amounts of tankyness, but it can also show that the champion with more health has less agility and thus is not able to kite away from further damage when engaged or poked.
Both League champions are great champions. Both have their pros and cons. In League's current meta, Nautilus usually fairs equally well when taking on Karthus, with a 50.0% win rate. Therefore, Nautilus makes an ok counter to Karthus.
While Nautilus does have a higher winrate than Karthus, when they face off with one another, Nautilus also has a lower level of difficulty that makes him a less difficult champ to learn and master. You still need to be cautious when picking Nautilus into Karthus.
Furthermore, Nautilus has a good amount of CC and other utility, a similar amount to Karthus. This makes her just as valuable during teamfights, especially when fighting champions with a ton of burst damage.
While there is not one best champion overall in League of Legends, in Nautilus 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 allied champions during teamfights.
Nautilus is a decent counter to Karthus. You will do well by focussing your gameplay on maximizing your CS and clearing objectives. If you can do that, you should be able to stand on your own as Nautilus against Karthus.
To learn all of the intricacies of Nautilus in order to counter Karthus during both the lane and mid / late game phases of League of Legends, you should continue reading to learn a few extra tricks and insights into this matchup. If you listen to the build and tips shown here, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Nautilus usually racks up less CS relative to Karthus. Champions who typically don't get much CS typically don't need much CS to be effective, such as supports. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically need many items to be effective. In either case, try to surpass the numbers reported on this page to do well.
The most crucial items to prioritize in your Nautilus versus Karthus build include Knight's Vow, Locket of the Iron Solari, and Solstice Sleigh. When Nautilus incorporated at least these three pieces in his build, he did much better when facing Karthus than with many other commonly used item sets. In fact, Nautilus had an average winrate of 50.0% when playing against Karthus with this counter build.
To have the best likelihood of annihilating Karthus as Nautilus, Nautilus players should take the Glacial Augment, Hextech Flashtraption, Minion Dematerializer, Cosmic Insight, Bone Plating, and Unflinching runes from the Inspiration and Resolve rune sets. Out of all the runes that we analyzed for Nautilus vs Karthus counterpicks, this mix of runes yielded the greatest win rate. Notably, these runes provided a 50.0% winrate overall.
By default, tips, stats, and builds on how to beat Karthus as Nautilus are shown for all skill levels combined. To scope the statistics and builds to a distinct rank, you should use the selection menu above.