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.
League of Legends Sejuani players may find her to be a difficult champ to build out properly. You'll see that her build varies when she is fighting either diversified or homogenous team compositions, showing you shouldn't select the same Sejuani build every single round of League of Legends
The most critical items to incorporate into your champion's build are: Iceborn Gauntlet, Sunfire Aegis, and Abyssal Mask. Those who included these items in their kits had a much higher winrate than players who went for other builds for Sejuani. Likewise, if you are battling a mixed enemy team comp, you should really consider grabbing Sejuani the Resolve, and Precision runes. In recent games, she won the largest percentage of her games when using these runes.
We calculated our Sejuani build recommendations by analyzing 33,511 recently ranked LoL rounds with her in them. We only propose the best winrate Sejuani builds that were built by ranked players enough times for us to advise them. With so many matches in our data, we are quite confident in our provided builds.