Melee allies can stack Frost for your Permafrost, keep an eye on who they are attacking.
Save Glacial Prison for encounters where you have teammates present to take advantage of it.
Use Arctic Assault to escape bad situations, interupt channeled spells or chase runners.
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 provided here show some influential Sejuani versus Nami counter stats that can help you figure out the differences between the pair. For instance, Sejuani’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Nami’s ratio of NaN, demonstrating that Sejuani may be more central to her team's team fighting potential than Nami..
Sejuani often has a slightly larger longest kill spree than her opponent does. On average, she receives more damage than Nami. This is usually reflective of differing health capacities, but it can also indicate that the champion with higher health has less mobility and thus is not able to escape further damage when poked or engaged.
Both League champs are great champions. Both have their pros and cons. In the game's current meta, Sejuani usually loses when taking on Nami, with a 47.3% win rate. As a result, Sejuani makes a bad counter to Nami.
While Sejuani does have a lower win rate than Nami, when facing one another, Sejuani also has a lower difficulty level that makes her a less challenging champion to learn and master. You may get destroyed when picking Sejuani into Nami.
Moreover, Sejuani has a good amount of utility and CC, 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 isn't a single best champion in League of Legends, in Sejuani vs Nami matchups, Nami is the better champ with a lower win rate, less champion complexity, and a similar amount of utility to help out your allies during teamfights.
Sejuani is a garbage counter to Nami. Focus your play on increasing your CS and taking out objectives. If you are able to do that, you should do very well as Sejuani against Nami.
If you would like to learn all of the intricacies of Sejuani to counter Nami during both the early game and mid / late game phases of League of Legends, you should continue reading to learn a few extra tips and tricks for this matchup. If you pay attention to the build and suggestions displayed above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Sejuani typically gets more CS as Nami. Champions who typically don't get much CS typically don't require much CS to be effective, such as sup champs. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often require a lot of items to be effective. In either situation, try to surpass the numbers displayed on this page to do well.
The most important items to use in your Sejuani versus Nami build consist of Sunfire Aegis, Thornmail, and Jak'Sho, The Protean. When Sejuani incorporated at least these three items in her build, she did a lot better vs. Nami than with many other common item sets. In fact, Sejuani had an average win rate of 47.3% when playing against Nami with these items in her kit.
To have the best chance of vanquishing Nami as Sejuani, you should use the Aftershock, Font of Life, Conditioning, Overgrowth, Legend: Alacrity, and Triumph runes from the Resolve and Precision rune sets. Out of all the rune combinations that we analyzed for Sejuani vs Nami counterpicks, this sequence of runes yielded the greatest win rate. Notably, these runes provided a 47.3% win rate overall.
If you would like to view Sejuani x Nami tips and counter builds for a a particular division, feel free to select one from the selection menu displayed above. At first, the stats and strategies shown are computed using every round finished with these champions.