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Sejuani Build Guide by LukaBre123



Updated on November 4, 2023
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League of Legends Build Guide Author LukaBre123 Build Guide By LukaBre123 265 31 672,229 Views 11 Comments
265 31 672,229 Views 11 Comments League of Legends Build Guide Author LukaBre123 Sejuani Build Guide By LukaBre123 Updated on November 4, 2023
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1 2
Font of Life

Legend: Alacrity

+10% Attack Speed
+6 Armor
+6 Armor


LoL Summoner Spell: Flash


LoL Summoner Spell: Smite


Threats & Synergies

Threats Synergies
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None Low Ok Strong Ideal
Extreme Threats
Ideal Synergies
Ideal Strong Ok Low None

Champion Build Guide


By LukaBre123
Trust nothing but your strenght, as viable Sejuani would say. Sejuani is a very mobile champion that is overloaded with CC and that's why she's so fun to play, you basically stun them to death.
She is even more fun to play since preseason introduced itself with Jak'Sho, The Protean and a buff for Sejuani(Finally). I've waited for so long and after just
5 nerfs in a row she got buffed. You probably didn't know that you could do so much damage with a tank?!
+ Great ganking potential
+ Great damage
+ Fast clear
+ Great sustain jungler
+ Very tanky
+ A lot of CC
+ Fun to play
Sejuani, as you can see has a lot of pros and she is very fun to play with especially when your team follows and helps you stack up that
Permafrost. It's so satisfying to land a perfect combo while your target is getting stunned and slowed for up to 5 whole seconds!!!

- She is slow
- Hard to escape
- Slow countergank
That is pretty much it since I couldn't find any other con besides some player mistakes, for an example fighting in the river over scuttle crab vs some strong early 1v1 champs like Olaf, Trundle and Xin Zhao, of course those mistakes are individual so I wouldn't call them cons.
Summoner Spells
Flash is the most picked summoner spell on Sejuani since she isn't really the fastest league of legends champion. It is commonly used to escape the enemies that are chasing you, but you can also use it combined with Arctic Assault to extend it's range or change the direction of which it was previously casted. Flash is necessary on Sejuani to manage to win a game.
Smite is basically the tool you need to be a jungler, it helps you clear the camps faster and after smiting 5 times you get upgraded pokemon smite which can be used on champions to slow them. In the early game you should save smite for neutral objectives like scuttle and for Drake but in the late game you can use it on champions and save one charge for Baron nashor or
Elder drake .

Fury Of The North (Passive)
=> Frost Armor: After not taking damage from champions or monsters, Sejuani becomes immune to slows and gains 10 (+50% bonus Armor) Armor and 10 (+50% bonus Magic Resist) Magic Resist. Frost Armor persists for 3 seconds after taking damage from champions or monsters.
=>Icebreaker: Enemies stunned by Sejuani are frozen, causing Sejuani's first attack or spell against them to deal [+10% target's max] as magic damage (300 vs Monsters).
Arctic assault (Q)
RANGE: 650
COST: 70 / 75 / 80 / 85 / 90 Mana
COOLDOWN:20 /18 / 16 / 14 / 12
Active: Sejuani charges, dealing magic damage to enemies and knocking them up for 0.5 seconds. The charge ends after hitting an enemy champion.

Magic Damage: 80 / 130 / 180 / 230 / 280 (+60%)
  • Try and only use your Arctic Assault when you attack your enemies or when you are trying to escape since it has a long cooldown so don't use it just to shorten your way around jungle by going over walls. If you are chasing someone it's better to save Arctic Assault and cast it after you stun them with Permafrost
  • When you use Arctic Assault you can flash at the end of it's animation to extend Arctic Assault's range or change it's direction.
Winter's Wrath (W)
RANGE: 600
COST: 65 Mana
COOLDOWN:10 / 9 / 8 / 7 / 6
Active: Sejuani swings her flail, dealing physical damage and applying Frost to enemies hit and knocking minions and monsters back.
She then lashes out with her flail, dealing physical damage, applying Frost and slowing enemies hit by 75% for 0.25 seconds.

First Strike: 20 / 25 / 30 / 35 / 40 [+2% max] (+20%)

Second Strike: 30 / 70 / 110 / 150 / 190 [+5.25% max] (+60%)
  • It's good to know that Winter's Wrath knocks back minions and monster at the first strike while the second strike is slowing them. Knowing this lets you decrease damage income from camps in the early game. When you activate Winter's Wrath try to hit the second strike because it slows the enemies a lot and you can easily catch them that way.
Permafrost (E)
RANGE: 600
COST: 20 Mana
Passive: Nearby melee allied champions' basic attacks apply Frost to enemy champions and large monsters.
Active: Target enemy with 4 stacks of Frost takes magic damage and are stunned for 1 second.
An enemy that has been stunned by Sejuani cannot gain Frost every 8 seconds.

Magic Damage: 55 / 105 / 155 / 205 / 255 (+60%)
  • It's best to use Permafrost before you use Glacial Prison since you need to wait for 8 second after your enemy has been hit by Glacial Prison to apply Permafrost active. You can easily stack it if you combine your basic attacks with Winter's Wrath or with other melee champion allies. You start with this ability because you can throw it on jungle camps without cooldown.
Glacial Prison (R)
RANGE: 1300
COST: 100 Mana
COOLDOWN:120 / 100 / 80
Active: Sejuani throws her True Ice bola that deals magic damage to the first enemy champion hit and stuns them for 1 second.
The bola becomes more powerful as it travels, dealing 50% more damage, stunning for 1.5 seconds and creating a storm that slows other enemies by 30%. After 2 seconds, the storm deals magic damage and slows by 80% for 1 seconds.

Magic Damage: 125 / 150 / 175 (+40%)

Empowered/Explosion Damage: 200 / 300 / 400 (+80%)

You should start with Mosstomper Seedling. On the first back you should go for Kindlegem, Boots and a Control Ward followed with Oracle Lens after that you need to choose between Mercury's Treads and Plated Steelcaps depending on the matchup as well. In most cases It is best to take Mercury's Treads since they give you magic resist and tenacity. Core item's for Sejuani are Jak'Sho, The Protean/ Iceborn Gauntlet, Warmog's Armor and Thornmail. Whatever mythic item you choose Warmog's Armor is essential because it gives you a lot of health and you can easily get to 3000HP because of runes ( Overgrowth and that's why you take Heart). Thornmail is also important since it applies grievous wounds. Now you need to choose between those two mythics so here are some advices so you can know which one to take and when.

Jak'Sho, The Protean

Jak'Sho, The Protean is so good on Sejuani because besides helping you clear camps like raptors (because of it's AOE damage around you) it also helps you in teamfight if you stack it up your basic attacks explode around you dealing even more damage. Sunfire is also good because you can stack it up even while you are attacking epic monsters(etc. dragon ; baron nashor ; rift herald ) so it's really easy to take those objectives even without your team's help. On the other hand if you decide to take Iceborn Gauntlet you will still get that extrta health since it also builds out of Kindlegem. Iceborn Gauntlet is as good as Sunfire Aegis on Sejuani and that's because then she becomes a real CC machine. Besides all that CC in your kit you will have another slow in your hands from this item's passive.

You should always take either Plated Steelcaps or Mercury's Treads dedpending on the enemy team.The Plated Steelcaps are very good since besides 20 armor they also reduce the incoming damage from all basic attacks by 12%.
Mercury's Treads > TENACITY
In a lot of situations you will be forced to take Mercury's Treads not because of magic resist they give but because of tenacity (if you are playing vs hard CC team).
Thornmail is one of the best against ad items on Sejuani since it applies grievous wounds and deals 10 (+10% bonus armor) magic damage to the attacker. It also gives you that little help to get to 3000hp that you need for Warmog's Armor.
Warmog's armor
This is where it gets interesting, after you build your Sunfire Aegis or Iceborn Gauntlet you need to rush Warmog's Armor since it gives you an enormous amount of HP(800HP to be precise). This item is so strong because when you get to 3000 max HP you will regenerate 5% of maximum health every second if damage has not been taken in the last 6 seconds (3 seconds for damage from non-champions).
Frozen Heart
The deal with Frozen Heart is that not only does it reduce incoming damage from attacks by 5 per 1000 health(capped at 40% of the attack's damage), but it also cripples the attack speed of nearby enemies by 15% and that's what counters champions that rely on attack speed( Yasuo, Yone, Master Yi, a lot of ADCs( Kalista, Kai'Sa, Ashe) basically a lot of champions).
Dead Man's Plate
Besides giving you a lot of armor and health Dead Man's Plate also gives you a lot of movement speed that you need to stack up by moving which is very good for Sejuani.At max stacks,by hitting the target that you hit with basic attack is also slowed by 50% for 1 second since Sejuani is melee.
Randuin's Omen
The best thing about Randuin's Omen is that it has a active which when casted slows nearby enemies by 99% for 0.25 seconds and reduces their attack damage by 10% and critical strike damage by 20% for 4 seconds (this is very good for engaging carries). This is good for Sejuani because she is a frontliner and needs to start a fight. When you go in with Arctic Assault immediately activate Randuin's Omen's active
Force Of Nature
Force of Nature is also a good pick for Sejuani since when you take ability damage Force of Nature gives you bonus movement speed(which Sejuani obviously needs) and magic resist that stacks and helps you stay longer in fights.
Spirit Visage
In comparison to the other items listed Spirit Visage isn't the strongest if you don't have some shielding or healing supports in your team.I mean it can help you with Warmog's Armor's passive to regenerate hp faster.
Abyssal Mask
This item is very good since it's passive says that when you Immobilize an enemy champion it increases the damage they take by 10% for 4 seconds which is awesome for starting a fight.
Knight's Vow
Situational items like Knight's Vow dedpends on what your team needs. Knight's Vow is a support item but it's very useful since it redirects 15% of the damage the ally you are conected with take towards you but stops when you hit 30% of your max HP. This is very good if you have Thornmail because of it's passive. Knight's Vow also gives you movement speed towards connected ally if they are below 50% HP.
Gargoyle Stoneplate
Gargoyle Stoneplate is an awesome item that gives you a lot of armor and magic resist while one of it's passives makes you invincible. You basically gain a 100 (+100% bonus health) shield that decays over 2.5 seconds. The other passive increases your armor and magic resist for 3% when being attack and it can stack up to 15%(3% for every enemy champion) which combined with force of nature makes you unkillable.

Aftershock is a must-have rune on tank Sejuani because you will get extra armor and magic resist when you CC an enemy(etc. Arctic Assault;active part of Permafrost; Glacial Prison).Since you are going to attack first ( Sejuani is a frontline champion and she needs to go first) you need Aftershock to be able to survive in those fights. It helps you survive that burst damage that's incoming 2.5 seconds after Aftershock was triggered.
Font of Life is an amazin rune! It is so good for Sejuani since your main goal is to impare the movement of the enemies when you go in with let's say Arctic Assault.By imparing the movement of your enemies besides making them easier to kill you also mark them for 4 seconds which let's your allies heal by attacking them.
Talking about Conditioning we need to mention that with all your armor and magic restist you build on Sejuani it won't be enough. That is where Conditioning comes in place because after 12 minutes of the game have passed you become so tanky that even Vayne has trouble killing you.
Overgrowth is such a good rune on Sejuani because it gives you a lot bonus max HP that you need since in your core build is Warmog's Armor. This runce scales deuring the whole game so you are constantly gaining more and more HP which makes you so hard to kill.
Last but not least are the shard runes that stay the same. Here you should go for Axe because you need that extra help to clear the jungle and stack Permafrost faster if you are by yourself. For the second shard aim to go for Shield or Circle depending on the enemy team(It's your choice but i prefer Shield because it helps you sustain in jungle). For the last shard you want to go for Shield if in the second you took Circle, otherwise take Heart because you want to have as much HP as you can( It also helps you with Warmog's Armor passive, getting to 3000 max HP)
Triumph β˜… Sejuani needs Triumph because you need her alive in teamfight or while diving a turret to tank the damage and throw some CC on your enemies. Triumph is very useful because let's say you dive a turret and the turret shot is coming towards you, Triumph will heal you if your teammates take a kill since you got an assist.
Legend: Alacrity β˜… Any extra attack speed that Legend: Alacrity gives Sejuani is good since you are going to stack Permafrost really fast. There is no point of taking Legend: Tenacity because Sejuani builds a lot of tenacity. You can take it vs some hard CC comps because you can't CC your enemies if you are CCed all the time.
Legend: Tenacity β˜… As said before Legend: Tenacity should be considered only if you are playing vs hard CC comps, so that you can at least throw Glacial Prison and Permafrost twice or more times in teamfight if nothing else.
Cheap Shot β˜… If you decide to go for Domination instead of Precision you should consider Cheap Shot because if you are not going for Legend: Alacrity you need to deal more damage in less time to balance it with the missing attack speed that Legend: Alacrity gives you.
Relentless Hunter β˜… This rune is amazing on Sejuani if you get assists or kills in the early game. It gives you that missing movement speed that Sejuani needs to run around the map fast when out of combat. On the other hand you can use Arctic Assault to go over walls and move faster but that wouldn't be good since it has a long cooldown
Full Clear Path
Blue Side:
First start of with red buff since you get help from your botlane you will clear it faster with help from
Permafrost. Then you go Krugs>Raptors followed by blue buff after which you will either take scuttle peacefully or fight over it with the enemy jungler. After that you need to decide would it be better if you ganked top or mid, if you choose to gank top: after gank immediately go for a recall and clear the rest of the jungle. But if you decide to go for a gank on mid you should procede to the other scuttle to have a gold advantage which is followed by a recall and clearing other camps that were left in blue side of the jungle.
Full Clear Path
Red Side:
The full clear path on red side is a little different but pretty much the same system. You basically start with blue buff, then you go Gromp>Wolves after which you are going to clear Raptors and red buff. After all that you need to decide whether you are going to do the scuttle or gank toplane ( It's better to gank top if possible). If you ganked top go for a recall otherwise go for the gank on mid after that go for the other scuttle and then recall. After recall you can go for Krugs but if you see a chance for a possible gank on botlane you should do that instead.
Gank Potential Path
Blue Side:
The Gank Potential Path on the Blue Side of the map consists of getting red buff and Krugs as fast as you can so you can surprise your enemies on the botlane by an early gank(YOU DON'T NEED TO DO KRUGS, BUT YOU CAN). If you decidec to go for an early gank on botlane It is the best to go fro scuttle then gank mid rush to the other scuttle, after which you need to decide whether you are going to gank top and recall or clear the blue jungle and recall. On the other hand if you chose to clear the red jungle then you immediately need to gank mid and the rest is the same.This clear is very good because you can give your alies a lot of adventage.
Gank Potential Path
Red Side:
Gank Potential Path on the Red Side is the same as on the Blue Side the only thing that you swapped is the bottom with the top lane since you start at red jungle as well. Pretty much the same system just leave the Blue Side clear path the same and swap bot and top.
This is one of the best and most used combos on Sejuani because it lets you do something while in casting animation of the ability. To do this combo you need to throw Glacial Prison while traveling with Arctic Assault to save some time since you while throwing Glacial Prison you are standing still for a small amount of time. It isn't that big of a deal but it will surely help you!
The thing about this combo is that you always need to at least try to activate Permafrost on the enemies before you hit them with Glacial Prison because that way you extend the stun duration. If you ult first you would need to wait for another 8 seconds until you can stun them with Permafrost again.
Last but not least is Arctic Assault combined with Flash. This is an amazing thing about Sejuani's Q because you can extend it's range by using Flash at the end of Arctic Assault's animation or let's say for instance you threw Q in wrong direction, in that case you can flash in other direction while in it's animation to stun the enemy.
Team Fight
By playing Sejuani you should always aim to go in first since you have a lot and i mean A LOT OF CC which doesn't let your enemies escape in any way. First thing you should do is hitting enemies with Arctic Assault if Glacial Prison is on cooldown. After that cast Winter's Wrath because on the second strike you will slow them a lot. This gives you two stacks of Permafrost and the other two will be stacked up by your basic attacks or melee alies that are hitting the enemy. If Glacial Prison isn't on cooldown you should always throw it on the enemy adc or if someone is by themself. That kind of engage is followed by Arctic Assault and Winter's Wrath because after hitting your ult you need to wait for 8 enormous seconds to use the Permafrost active... Also always try to use some of the combos listed above.
Ban List

By playin Sejuani your main goal is to CC the enemy and you can't do that if the enemies picked anti-cc champs or the ones that can dodge a lot of your abilities and make your kit useless vs them. Since you are not playing AD Sejuani as i would say because you are reading this guide, you rely heavy on your sustain ability and CC.
Olaf β˜… Olaf is your biggest counter because of his ult Ragnarok which breaks all CC and makes him immune to CC for the duration of his ult. This is so strong vs Sejuani because she relies on CC. On top of all that Olaf is one of the strongest 1v1 fighters and because you can't CC him you are his prey and he is your predator.
Lillia β˜… Lillia is so strong vs Sejuani because of her movement speed. It makes her so hard to catch since Sejuani doesn't have a lot of movement speed. This deer is both strong and fast which makes her really hard to CC, but if you catch her, she is dead.
Hecarim β˜…By playing Sejuani consider banning Hecarim because he has a lot of movement speed just like Lillia and he is a strong fighter that can last in fights for so long.
Trundle β˜…One of the most annoying Sejuani counters is Trundle. Trundle is so strong in early game and has a good 1v1 potential like Olaf. The interesting thing about Trundle is that in the late game he is even stronger because of his ult Subjugate. Subjugate lets Trundle drain max Hp AND 40% of your magic resist and armor over 4 seconds which last for another 4 seconds. This literally drains Sejuani's soul and makes her so easy to kill. If you are playing vs Trundle try to go in and CC everybody you can until he ults you, if you didnt cast Glacial Prison by that time use it so you can escape while you are vulnerable
Graves β˜… Graves is not that big of a deal as Olaf but he can dodge some of your abilities with Quickdraw and if he choose to go Phase Rush Graves he will be hard to catch as well.
Tliyah β˜… Taliyah does well vs Sejuani because she can deal a lot of damage to you while keeping a distance. Her kit alo counters Sejuani a little because she can slow you and deal damage to you if you use Arctic Assault while going through her Unraveled Earth.
Kindred β˜… Kindred is one of the champions that can shred Sejuani and if her Wolf's Frenzy is active, she can cast Dance of Arrows a lot of times and dodge your CC abilities. You can still catch up and do something in fight until she casts Lamb's Respite which allows her to get you to low HP since she can't die [/color].
Kha'Zix β˜… Kha'Zix is not that big of a deal for Sejuani because she is tanky and all that. The problem with Kha'Zix is that he mainly builds lethality items like Eclipse, Duskblade of Draktharr or even Prowler's Claw. And on top of all that he has a lot of mobility and an ability to go invisible Void Assault.
Nunu & Willump β˜…This champ is a problem for Sejuani since he has Consume in his kit which allows him to heal up some missing HP. Nunu & Willump can also use his W ( Biggest Snowball Ever!) to cancel your Arctic Assault.
Kayn β˜…People often pick Kayn vs Sejuani because he can gank a lot since he can go through walls with his Shadow Step and it's really hard to follow up with Sejuani since she is a slow champ. If Kayn goes for red form he is so hard to kill and his Reaping Slash heals him a lot which gives him more sustain.
Karthus β˜… Karthus is really strong vs Sejuani because of his fast clear, but his gank potential is bad but he can use Requiem which damages every enemy. He can also poke you a lot with his Lay Waste from distance.
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