Use Arctic Assault to initiate on enemies and knock them up. Have your teammates follow up after this.
Start teamfights with Fury of the North so that you have sustainability to spam Winter's Wrath and build frozen stacks to Permafrost high priority targets.
LoL Sejuani players will likely find her to be a difficult character to build out properly. You will find that her build is modified when she is playing against either well-rounded or homogenous team compositions, showing you should not follow the same Sejuani build every game of League of Legends
The best items to include in your champion's build include: Heartsteel, Sunfire Aegis, and Abyssal Mask. Players who added these pieces in their gear had a greater winrate than those who went for other Sejuani builds. Similarly, if you are facing a varied enemy team arrangement, you should really consider grabbing Sejuani the Resolve, and Inspiration runes. In recent games, she won the largest fraction of her matches when using these runes.
We came up with our Sejuani build suggestions by examining 36,630 recently ranked League of Legends games with her in them. We only advise the best winrate Sejuani builds that were used by ranked LoL players enough times for us to reccomend them. With so many matches in our dataset, we are confident in our provided builds.