Aqua Prison is a very powerful ability with a long cooldown, take advantage of the situation if Nami misses this ability.
Tidal Wave has a very long range but travels slowly, be aware of when it is coming your way as you can move out of its path.
Try to avoid fighting an opponent affected by Tidecaller's Blessing, it lasts a short duration so waiting it out can help you greatly.
The stats shown on this page emphasize several vital Sett against Nami matchup stats that may help us realize the distinctions between the pair. As an example, Sett’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Nami’s KDA ratio of NaN, highlighting that Sett may be more central to his team's team fighting effectiveness than Nami. This observation is in large part caused by the difference in kills.
Sett typically has a much larger longest killing spree than his enemy does. Typically, he takes more damage than Nami. This often reflects different amounts of tankyness; however, it can also illustrate that the champion with more HP has less mobility and thus is not able to kite away from additional harm when poked or engaged.
Both LoL champions are great. Both champs have their pros and cons. In the game's current meta, Sett usually fairs equally well when trying to fight Nami, with a 50.1% win rate. Thus, Sett makes an ok counter to Nami.
While Sett does have a higher win rate compared to Nami, when on opposite teams, Sett also has a lower learning curve that makes him a less challenging champ to pick up and master. You should be careful when picking Sett into Nami.
Moreover, Sett has almost no amount of CC and other utility, a similar amount to Nami. This makes her just as valuable during teamfights, especially when facing champions with a ton of burst damage.
While there is not a single best champion in League of Legends, in Sett vs Nami matchups, Sett is the better champ with a similar win rate, less champion complexity, and a similar amount of utility to help out your allied champions during team fights.
Sett is a decent counter to Nami. Focus your strategy on keeping up your CS and destroying objectives. If you can do that, you should do very well as Sett against Nami.
To truly master Sett in order to counter Nami during both the lane and mid / late game phases of League of Legends, you should keep reading to gather a few extra lessons on this matchup. If you mind the build and suggestions shown here, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Sett typically picks up much more CS relative to Nami. Champions who on average don't take much CS typically don't require much CS to be effective, such as sup champs. These kinds of champions are able to scale properly off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, usually need many items to be effective. In either case, try to surpass the numbers shown on this page to do well.
The ideal items to have in your Sett versus Nami build include Goredrinker, Sterak's Gage, and Titanic Hydra. When Sett bought at least these three items in his build, he did a lot better vs Nami than with most other commonly used builds. In fact, Sett boasted an average win rate of 50.1% when countering Nami with this build.
To have the highest probability of defeating Nami as Sett, Sett players should use the Conqueror, Triumph, Legend: Alacrity, Last Stand, Second Wind, and Unflinching runes from the Precision and Resolve rune sets. Of all the runes players picked for Sett vs Nami counter picks, this set of runes resulted in the highest win rate. In fact, these runes provided a 50.1% win rate overall.
If you need to see Sett x Nami tips and builds for a a particular division rank, feel free to choose one from the selection menu displayed above. By default, the statistics and guides given are calculated using all matches with data with both champs.