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.
The Sejuani Vex synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Vex, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Sejuani sees a very large drop in her KDA (ratio of kills and assists to deaths) when paired with Vex. His KDA fell from NaN to NaN. This fall shows that Vex helps Sejuani perform worse in competitive League games. Yet, the small difference indicates that this performance change is only marginal.
When Sejuani plays on the same team as Vex, she gets a little decrease in her complete damage output. This difference may indicate that Vex does not help protection for her to deal more damage or that their presence on the team also helps increase the game's duration. Similarly, when Sejuani is played together with Vex on the same team, he usually scores many fewer killing sprees compared to when she plays on his own. This is contrasting evidence that she is worse when playing synergisticly with Vex.
Moreover, when Sejuani plays with Vex on the same team, she often receives a little more damage than when she plays alone. Taking more damage may mean that Vex does a poor job of covering Sejuani in team fights.
There is no ideal champion pairing for Sejuani that will always be her #1 synergy. Yet, overall, Vex is a very bad companion for Sejuani. By being on the same side as Sejuani, they drops their win rate by -3.9% to 43.0%. This shows that there is an easy to overcome and exploit synergy between Sejuani and Vex that allows them to perform worse together than without each other.
Vex has a much lower diffuclty than Sejuani. That means Sejuani players don't need to be careful when lining up Vex teammates to play with, as they will require a much lower level of skill to cooperate well with you.
Working together, Sejuani players should observe an overall large increase in your team’s capability to provide utility and CC for your side. When paired, these champs will help their other teammates secure a victory.
Conversely, by pairing Sejuani and Vex together, you probably will not be giving your other teammates a lot of anti-tank damage dealing potential. Plan to pick other champions on your team that nullifies this relative disparity in this pairing's playstyle.
Regardless of the ability of your Vex ally, you need to focus on maximizing your income, warding to avoid ambushes, and clearing objectives. If you follow these simple suggestions, you should do well, regardless.
To truly master Sejuani in order to work well with Vex during both the lane and mid / late game phases of LoL, you should keep reading to pick up a few extra tips and tricks for this champion pairing. If you use the build and stats displayed above, you will increase your win rate significantly.
The best items to use in your Sejuani and Vex synergy build include Sunfire Aegis, Thornmail, and Jak'Sho, The Protean. When Sejuani included at least these three pieces in her build, she performed significantly better when fighting alongside Vex than with most other typical builds. In fact, Sejuani had an average winrate of 43.0% when synergizing her build and playstyle to Vex with this build.
To have the best probability of coming out on top against your oponents, you should equip the Aftershock, Font of Life, Conditioning, Overgrowth, Legend: Alacrity, and Triumph runes from the Resolve and Precision rune sets. Of all the runes we have analyed for Sejuani and Vex pairings, this composite of runes yielded the best win rate. In fact, these runes gave a 43.0% winrate overall.
By default, tips, stats, and builds on how to pair Vex with Sejuani are shown for all ranked divisions combined. If you would like to filter the stats and builds to a particular rank, you should use the selection menu earlier on the page.