Ap seju mid
Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Why ad marks? + early laning explanation
Marks of physical dmg for easier farming and ofc that early Ap burst (quins and glyphs)
Sejuani is early game pretty strong and falls a bit off at lategame
Her Q does an insane amount of dmg early so try hitting the enemy witha good Q W combo, on champs like anovia it'll be devestating; they lose 3/4th of their hp, rush the hextech revolver so you can 1 shot people. Your combo is: R-W-Q-E because you want to charge your W while charging. Mid game and late game is pretty hard for sejuani when they start building MR so try rushing a void staff then. At lategame, your R is the most important skill to land, wait for the enemy adc or the carry of the team to engage, ONLY USE YOUR ULT VS CARRIES!!! NOT TANKS! I hope this will help you!!