Kassadin's ultimate has many uses and is on a shorter cooldown than most, use it often.
Kassadin has multiple item paths; he can go caster via Mana and Ability Power or anti-caster with Cooldown Reduction and Magic Resist.
Try to get the Ancient Golem buff to counteract Riftwalk's increasing Mana cost.
If Nautilus uses Riptide right next to you, hold in place until the ripple effect finishes before running. Running early will run straight into the secondary explosions, causing you to take additional damage and slow.
While Nautilus is shielded, he is capable of dealing large amounts of area of effect damage with his basic attacks - consider taking down the shield if you have time.
The stat comparisons shown here highlight some strategic Kassadin vs. Nautilus counter stats that can help us grasp the differences and similarities between the two. Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is better than Nautilus’s KDA ratio of NaN, showing that Kassadin may be more central to his team's team fighting capability than Nautilus. This observation is in large part fueled by the difference in kills.
Kassadin often has a much larger longest killing spree than his counter does. On average, he receives more damage than Nautilus. This often reflects differing health capacities; however, it can also show that the one champion has less mobility and thus is unable to flee from further harm when poked or engaged.
Both League champions are great champions. Both champs have their strengths, weaknesses, and counters. In League's current meta, Kassadin usually fairs equally well when playing against Nautilus, with a 49.9% win rate. Thus, Kassadin makes an ok counter for Nautilus.
While Kassadin does have a lower win rate compared to Nautilus, when facing one another, Kassadin also has a greater difficulty level that makes him a more challenging champ to learn and master. You still need to be cautious when picking Kassadin into Nautilusas his relative depth means you may not be able to unleash his full potential without a lot of practice beforehand.
Furthermore, Kassadin also has some amount of CC and other utility, a similar amount to Nautilus. This makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there isn't one best champion in League of Legends, in Kassadin vs Nautilus matchups, Nautilus is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your allied champions during team fights.
Kassadin is a somewhat poor counter for Nautilus. Make sure you focus your strategy on maximizing your CS and destroying objectives. If you are able to do that, you should hold your own as Kassadin against Nautilus.
If you would like to truly master Kassadin to counter Nautilus during both the early game and mid / late game phases of League of Legends, you should continue reading to gather a few extra tips and tricks for this matchup. If you pay attention to the build and tips presented above, you will grow your win rate by a lot and be closer to League of Legends pro players.
Kassadin typically gets much more CS relative to Nautilus. Champs who on average don't take much CS often don't have to have much CS to be effective, such as supports. They are capable of scaling well off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, usually require several high cost items to be effective. In either case, try to exceed the numbers displayed on this page to do well.
The best items to focus on in your Kassadin versus Nautilus build consist of Seraph's Embrace, Rabadon's Deathcap, and Malignance. When Kassadin included at least these three items in his build, he performed much better against Nautilus than with many other typical item sets. In fact, Kassadin had an average win rate of 49.9% when playing against Nautilus with this build.
To have the best probability of vanquishing Nautilus as Kassadin, you should use the First Strike, Magical Footwear, Future's Market, Cosmic Insight, Sudden Impact, and Ultimate Hunter runes from the Inspiration and Domination rune sets. Of all the rune combinations players picked for Kassadin vs Nautilus counter picks, this set of runes resulted in the best win rate. Notably, these runes averaged a 49.9% winrate overall.
By default, tips, stats, and builds on how to beat Nautilus as Kassadin are presented for all skill levels combined. If you would like to narrow the stats and builds to a specific division, you may use the selection menu located earlier in the counter matchup guide.