Greater Mark of Magic Penetration runes are more suited if your going to be ganking the majority amount of time. These runes will greatly improve the effectiveness of your abilities.

Greater Mark of Hybrid Penetration runes are more suited if your going to be clearing camps very early game (Pre-6). These runes offer greater clearance of camps than your Magic Penetration runes but fall off late game unlike Magic Penetration runes.

Greater Mark of Armor runes along with Greater Seal of Armor runes provide that extra sustain when clearing camps or when being counter jungled.

Greater Mark of Attack Speed runes assist in the faster clearance of jungle camps. They provide a 15% Attack Speed buff at the start of the game.

Greater Seal of Armor runes improve your sustainability whilst jungling. Sejuani is quite weak early on till she gets some sustain, in which these runes will mitigate some of the damage and keep your health high enough to perform ganks after getting Blue and Red.

Greater Seal of Percent Health runes greatly improve your overall HP. These runes are more suited for late game where health is more important.

Greater Glyph of Magic Resist runes boost your sustainability against junglers who go AP particularly if your counter jungled early on. Take these if the enemy APC strong early game (e.g. Soraka).

Greater Glyph of Scaling Magic Resist runes are a late game rune that provides 24 additional magic resist. In addition to your items and masteries these runes will improve your late game sustainability especially against burst APC's and DPS APC's.

Note: These runes surpass Greater Glyph of Magic Resist runes at level 10.

Greater Quintessence of Ability Power runes improve early game damage and jungle clear. Recommended primarily for the fighter role although it is viable for the Tank role.

Greater Quintessence of Percent Health runes are much like their Seal counterparts. They are a rune more suited for the Tank role providing up to 4.5% (7.5% with masteries) extra health points.

Greater Quintessence of Movement Speed runes improve your ganking and jungling ability. Your jungling in that it takes less time to get from camp to camp which over time enables you to out-farm the enemy jungle and also improve your ganks and chasing ability.

Greater Quintessence of Health runes improve your early game tankiness. This will mean that if you decide to go for a level 2 or 3 gank you'll be able to last longer in a gank and if you receive more damage than you expect you still have enough to return to jungle. These runes however fall off mid game when people have stacked considerable damage.

Sorcery which gives you 5% CDR and a minimum of 15% assuming you take Spirit of the Spectral Wraith early game. This enables you to clear camps faster, increase damage output and increase the likelihood of having Arctic Assault off CD to use as a gap closer or escape mechanism.
Expose Weakness which improves Sejuani's team fight ability by increasing team damage output by 1% for 3 seconds. Works well when used in conjunction with her ultimate Glacial Prison or Permafrost ability.
Executioner which improves her duelling capabilities. With this mastery, the damage in your ganks is much stronger, more likely resulting in a burnt Flash or a Kill/Assist for yourself and team. In addition this masteries allows Sejuani to finish off select weakened champions.
Tough Skin / Bladed Armor is a must for a jungler. Neglecting to get this is going to make your life more difficult than it has to be early game. Getting this helps with clearing camps faster and taking less damage.

Oppression which is a mastery that reduces the damage from enemies affected by movement impairment. This enables Sejuani to tank more damage as her entire kit is essentially made up of movement impairing CC.
Hardiness which is a mastery that improves Sejuani's early game sustain in the jungle.
Perseverance which is another mastery which improves Sejuani's sustain in the jungle and during fights.
Legendary Guardian which is a mastery that makes Sejuani more tanky the more enemy champions there are nearby. Great since you'll be the one initiating the team fights.
Tenacious which is a great mastery when in combination with Tenacity and Sejuani's passive Frost Armor. This makes slows very ineffectual against her with the duration and effectiveness severely mitigated.
Fleet of Foot is a mastery which decreases the time it takes to gank lanes, get from camp to camp and aids in early pursuing of fleeing enemy champions.

Mental Force is a mastery that provides scaling ability power as you level. This provides a greater amount of damage to your abilities, making a small but powerful contribution to your late game damage.

Arcane Mastery grants a flat Ability Power buff to Sejuani's early game damage. It enables slightly quicker jungle camp clears and greater damage during ganks.

Damaging an enemy with an ability or basic attack grants 10 / 15 / 20 / 25 bonus armor and reduces movement-slowing effects on Sejuani by 10 / 15 / 20 / 25% for 2 seconds. Subsequent damage will increase the duration by 2 seconds up to a cap of 8 seconds, with further damage refreshing the duration.

Note: Slow resistance stacks multiplicatively from all other sources. Sejuani may achieve a maximum of 49.375% slow resistance with the Swiftness mastery and Boots of Swiftness at level 17.

Sejuani charges forward, knocking enemies into the air and dealing magic damage equal to a flat amount plus a percentage of their maximum health (max 300 damage to monsters). This charge stops after knocking an enemy champion into the air.

Magic damage: 40 / 70 / 100 / 130 / 160 (+ 40% AP) (+ 4 / 6 / 8 / 10 / 12% of enemy's maximum health)

Sejuani's next basic attack deals bonus magic damage to the target and enemies near it. She then swings her flail, dealing magic damage each second to enemies within range for 4 seconds. If this ability is reactivated, Sejuani immediately starts swinging her flail.

Bonus Magic Damage: 40 / 60 / 80 / 100 / 120 (+ 30% AP)
AoE Damage per Second: 20 / 30 / 40 / 50 / 60 (+ 2.5% of bonus health) (+ 15% AP)
Total AoE Damage: 80 / 120 / 160 / 200 / 240 (+ 10% of bonus health) (+ 60% AP)
Maximum Damage to One Target: 120 / 180 / 240 / 300 / 360 (+ 10% of bonus health) (+ 90% AP)

Passive: Sejuani's abilities and basic attacks apply Frost to enemies for 4 seconds.

Active: All nearby enemies with Frost take magic damage and are slowed, and the Frost debuff is removed from the targets of Permafrost. This spell is unable to be cast if no enemies in range have the Frost debuff.

Magic Damage: 60 / 110 / 160 / 210 / 260 (+ 50% AP)
Slow: 50 / 55 / 60 / 65 / 70%
Duration: 1.5 / 1.75 / 2 / 2.25 / 2.5

Sejuani throws her frost-forged bola in a line. If the bola hits an enemy champion, it shatters, stunning the target and nearby enemies for a duration. If the bola reaches its maximum range, it shatters and slows enemies by 90% instead for the same duration.

All enemies in the shatter area take magic damage.

Magic Damage: 150 / 250 / 350 (+ 80% AP)
Stun/Slow Duration: 1.25 / 1.5 / 1.75

This skill sequence emphasises aggressive ganking. Meaning that the majority of your time will be spent roaming and ganking lanes, releasing pressure off your allies and increasing pressure on the enemy, making them reluctant to venture forward to farm and harass and to spend gold on buying wards. This sequences enables the use of your Permafrost ability which at level 1 slows enemies affected by Frost (caused by any of her abilities except E) by 50% for 1.5 seconds. This will undoubtedly result in Flash being burnt.

The downside to this approach is that your camp clearing is much slower, in addition to your mobility/escape being on a very long cooldown. This means that if counter-ganked there is a good possibility of dying and being put behind.

This skill sequence emphasises aggressive camp farming of a cyclical nature. Meaning that the majority of the time will be spent farming in your own jungle (counter-jungling if possible) and doing a gank or two once all the camps have been cleared. This approach enables quick clearances of jungle camps enabling you to exit to gank with a high amount of health and deal out a high amount of sustained damage during ganks. Mid game this sequence allows greater mobility and disruption to enemy champions (especially the ADC/APC) through your Arctic Assault ability being on a shorter CD and providing much needed burst).

The downside to this skill sequence is that your ganks are not going to be as strong if you had instead chose the first skill sequence. Your ganks are still effective but there is still a greater possibility of enemies escaping especially if your initiation fails. In addition this skill sequence is far more costly than Sequence #1 when it comes to mana as Arctic Assault's mana cost increases as you level it. This can be offset by mana potions or investing in a Chalice of Harmony early on.

This skill sequence for the early game portion is exactly the same as Sequence #1, with the same advantages and disadvantages. Where it differs is mid-game. In this sequence, Arctic Assault(Q) is maxed second allowing for increased mobility, CC and a reliable escape mechanism. As you can no doubt discern this sequence relies heavily on ganks being successful and mid-game skirmishes or team fights ending well as your farming ability will be severely hampered until late game. On a positive note your mana costs will be relatively low in comparison and will only need to resort to mana bots if Blue is stolen or given to mid. As such the difficulties in farming lead me to believe that this sequence makes it very difficult for it to viable for a fighter build.

In summary I will say this: The first three skills you level must be one of each (QWE), with W being first and the selection of the second skill being up to you. Perhaps you want to do a level 2 gank and so you choose E (Sequence #1/#3) or you want mobility so you choose Q (Sequence #2).

Spirit of the Spectral Wraith is used a gold income item for the AP Fighter role. The 80 Ability Power and 10% CDR are very beneficial in making farming and ganks much more powerful as well as providing addition sustain from it's passive.
Ionian Boots of Lucidity provide movement speed and additional cool down reduction (30% now) which enables Flail of the Northern Winds to be activated most of the time and Permafrost to proc when enemy champions are hit with Frost. Ultimately what boots you get depends on what the situation calls for.
Hextech Revolver provides sustain and extra damage and should be picked up just before or just after the lane phase. The ability Flail of the Northern Winds will only proc 4% spell vamp, but this in combination with the other items ensure that when clearing camps or engages in ganks Sejuani remains at a high level of health.

Spirit of the Ancient Golem is the gold income item for the Tank role. It provides additional health points, cool down reduction and sustain as well as providing much needed Tenacity which will work well with the Tenacious mastery.
Boots is listed here as a temporary thing as the situation that could arise may call for different types of boots (see boots section for details).
Rylai's Crystal Scepter is a great additional CC asset to Sejuani's slow theme. This procs well with Flail of the Northern Winds and Liandry's Torment when ganking and during team fights.

Liandry's Torment is an item that gives flat magic penetration and a decent amount of ability power. But the main reason it is core on Sejuani is due to the passive. It's passive deals 2% of the enemies current health per second for 3 seconds. This is double for enemies that have a movement impairment. Most of Sejuani's kit provides movement-impairment CC which procs this passive.

Spirit of the Ancient Golem is the gold income item for the Tank role. It provides additional health points, cool down reduction and sustain as well as providing much needed Tenacity which will work well with the Tenacious mastery.

Note: This is a core item on the Tank role ONLY.

Boots of some kind whether that be Mobility Boots, Boots of Swiftness, Ionian Boots of Lucidity, Mercury's Treads or Ninja Tabi will be core on Sejuani. What differs is what the situation calls for.

If your playing as a AP Fighter I recommend Ionian Boots of Lucidity, Mobility Boots, Boots of Swiftness or Mercury's Treads.

If your playing as a Tank I recommend Mobility Boots, Boots of Swiftness, Mercury's Treads or Ninja Tabi.

Will of the Ancients is a great AP jungle item, that provides sustain, cool down reduction and ability power which will improve clearance speed of camps and the strength of ganks.

Zhonya's Hourglass brings sustain, ability power and an active that allows you to become untargetable and invulnerable for 2.5 seconds at the expense of motor skills and abilities. A handy item if your ambushed and allies are close by to activate this and then begin fighting as your team arrives.

Rabadon's Deathcap brings massive ability power boost and damage to all of your abilities. Great to have if your stacking a large amount of AP (400+). A bit of a waste if your AP amount in your build is low.

Spirit Visage is a great defence item. It provides additional health points which will add to the damage of Flail of the Northern Winds, sustain, improve defences against AP Champions and give cool down reduction. In addition SV gives an addition 20% spell vamp and brings the total to 24% (8% for AOE).

Rylai's Crystal Scepter is a great tank item which gives your Flail of the Northern Winds ability a small 15% slow for 4 seconds when doing AOE damage. In addition it provides health and additional ability power and procs with Liandry's Torment giving an additional 12% damage of current health over 3 seconds. Having these two items greatly improve your duelling capabilities.

Lich Bane is a great item as it provides additional mana, ability power and movement speed. In some situations you may decide to forgo boots and combine the movement speed modifier of this item and Twin Shadows to get the adequate movement speed required. The main reason this item is listed is due to it's passive which gives 75% additional ability power as damage on top of your next basic attack which goes hand in hand with Flail of the Northern Winds. This item also works well with Rylai's Crystal Scepter and Liandry's Torment. Feel the burn.

Twin Shadows is a great utility item to have if your playing as a tank or a fighter. Apart from the ability power, movement speed and magic resist it's active brings an additional CC to Sejuani's kit, this time allowing her to lock down those annoying champions with high mobility like Master Yi or Warwick as well as stealth enemies such as Teemo.

Frozen Heart is a great Anti-ADC defence item (E.g. Vayne). It provides a lot of CDR, Armour, additional mana and an aura that decreases the attack speed of all enemies by 20% This effectively drops the output of damage from auto attacks meaning your team and yourself can sustain for longer in a team fight.

Rylai's Crystal Scepter procs Liandry's Torment and as such is a great item to have together to make yourself very tanky, whilst also bringing additional CC and ability power to make your damage output stronger.

Sunfire Aegis is a purely defensive item providing sustain, health points and a passive that goes very well with your Flail of the Northern Winds ability greatly improving your duelling and jungle clearing time. I also recommend this item if your playing as a Tank.

Rod of Ages is a great tank item, which provides a lot of ability power to increase your damage, health to tank damage and mana to be able to activate abilities for a longer amount of time.

Hextech Gunblade is a great hybrid sustain item. In addition it provides an active with a significant damaging slow, that can assist Sejuani and co with locking down fleeing enemy champions. It is a more offensive sustain item than Will of the Ancients and as such comes with a higher cost.

Abyssal Mask provides sustain from magic sources, ability power and a team utility passive reducing enemy magic resistance by 20. This assists with your Mage and Supports damage out-put.

Guardian Angel is a great get out of jail free item. It provides moderate defensive stats, but it is the passive that it's bought for. Upon death, the champion enters stasis and is revived with 30% health and mana. Great item to have if you find your dying a lot during team fights.

Thornmail is a great item to punish those auto attackers like Fiora, Master Yi or any ranged ADC. Since the amount of magic resistance is low early - mid game for most champions this item can greatly enhance your presence during ganks in bot lane as 30% of the incoming damage from basic attacks is returned as magic damage as well as improve your sustainability during jungling.

Banshee's Veil is a great tank item. Providing massive health regeneration, health points, magic resist and a spell shield. Very great for avoiding Blitzcrank's Rocket Grab head-on and initiating a team fight on your terms.

Spirit Visage is another great tank item. Much like Banshee's Veil it provides health points, magic resistance and health regeneration. In addition it provides 10% CDR and enhances sustainability, particularly if you have life steal or spell vamp.

Rod of Ages alleviates Sejuani's mana issues, provides a large pool of health points and two passives that improve her tankiness and sustainability in the jungle especially early on.

Randuin's Omen is another great tank item. Providing a lot of sustain, health points, a anti-auto-attacker passive and a strong slow active for 2 seconds + 1% of your armor. As such you can expect this slow to last from 3-4 seconds. The passive when focussed by an AA Bruiser or ADC inflicts an attack speed and movement speed debuff which is great in order to lock down the enemy ADC.

Mobility Boots are a great roaming and jungling boot. The passive increases your movement speed by 105 when out of combat which can allow you to gain an edge over your opponent in terms of farming and ganking frequency. The massive increase in movement speed can allow you to escape some enemies as long as you can break away from their CC.

Boots of Swiftness are a more reliable and faster version of Mobility Boots but lacks the escape/speed boost Mobility provides. It's passive decreases the effectiveness of slows regardless of whether or not your pursuing or fleeing and should stack with your passive (need to test this).

Ionian Boots of Lucidity are a situational type of boot. They provide standard movement speed in addition to 15% cool down reduction which aids Sejuani in being able to activate her abilities more often and improve her jungle clearance. Not an ideal choice of boots for the Tank role.

Mercury's Treads are a great boot choice regardless of whether your a tank or a fighter. They provide standard movement speed but reduce the duration of movement-impairing CC such as Stuns, Slows and Immobilizes by 35% Highly recommended if the enemy team is packing a lot of hard CC. In addition they provide +25 Magic Resistance which is great against those early game APC's e.g. Soraka.

Ninja Tabi are a great boot to combat those champions that output a lot of physical damage. The boot provides additional sustain during jungle clearance and reduces physical damage from basic attacks by 10% Great to combat champions like Pantheon who are strong early or ADC's who snowball early. Highly Recommended for the Tank role.

Sorcerer's Shoes are a great boot for champions stacking AP. For the AP Fighter role these boots complement Liandry's Torment and Greater Mark of Magic Penetration runes quite nicely providing a lot of flat magic penetration allowing enemies to receive more damage.

1. Ask for a hard leash at the blue buff and level W Flail of the Northern Winds first.
2. Ensure your Red is guarded by your other allies so you don't lose red early. Ask for a ward to be put down to warn you if your red is going to be stolen (in bush).
3. Use Smite on the Big Golem and make a choice as to level Q Arctic Assault or E Permafrost. If E go gank the nearest priority lane or if Q jump through the wall and head towards the Wraiths .

4a. After Ganking one or two lanes return to the jungle and head towards the Red Buff.

4b. Use Arctic Assault through the wall a second time and hit the Wraith and activate Flail of the Northern Winds mid charge and target the large wraith. When you finish wraiths, Smite should be close to or have already come back up head to Red Buff.

5a. Activate Flail of the Northern Winds and target the Lizard Elder , moving towards the bush to ensure you don't get ambushed or have the buff stolen. Activate Permafrost once in the bushes. Use Smite once the Lizard Elder is below 500 hp. Level up Arctic Assault (Q) and activate it charging towards the Wolves .

5b. Use Arctic Assault and jump through the wall attacking the Lizard Elder . Once you have his attention lure him and his Young Lizard 's to the side bush and activate Flail of the Northern Winds. Keep reactivating your abilities till the Lizard Elder is below 500 and activate Smite. Level up Permafrost (E) and head towards a priority lane to gank.

6a. Activate Arctic Assault and jump through the wall knocking up the Giant Wolf and Wolf 's [sic] and activating Flail of the Northern Winds mid charge and attack the Giant Wolf . Activate Permafrost. Once that camp is clear head towards the Wight and use Arctic Assault and Flail of the Northern Winds simultaneously activating Permafrost once Frost has manifested. Use Smite once the Wight gets low. At this stage you have a choice to gank again if you feel you can or to return to shop and buy Spirit Stone, Boots, 5 Health Potion's and 2 Mana Potion's.

6b. Once you have ganked one or two lanes return to jungle and head towards the Big Golem and Golem camp using all you abilities focussing on the Big Golem. When it gets low enough activate Smite killing it and finishing off the other Golem . Return to shop and buy Spirit Stone, Boots, 5 Health Potion's and 2 Mana Potion's.

This concludes the Blue Start Jungling Guide. It should be noted that at level 2 Wolves cause too much damage for Sejuani to tank without wasting pots and waste time. In addition Wraith and Lesser Wraith 's give more experience, have less HP and damage. As always it is important to invest in wards. I always invest in a Vision Ward which I put close to my blue but also grants vision on river for my Mage.

1. Ask for a hard leash at the red buff and level W Flail of the Northern Winds first.
2. Ensure your blue is guarded by your other allies so you don't lose blue early which you depend upon. Ask for a ward to be put down to warn you if your blue is going to be stolen (in bush).
3. Use Smite on the Lizard Elder and make a choice as to level Q Arctic Assault or E Permafrost. If E go gank the nearest priority lane or if Q run around the wall and head towards the Wraiths .

4a. After Ganking one or two lanes return to the jungle and head towards the Blue Buff.

4b. Use Arctic Assault and hit the Wraith and activate Flail of the Northern Winds mid charge and target the wraith . When you finish wraiths, Smite should be close to or have already come back up head to Blue Buff.

5a. Activate Flail of the Northern Winds and target the Ancient Golem , moving towards the bush to ensure you don't get ambushed or have the buff stolen. Activate Permafrost once in the bushes. Use Smite once the Ancient Golem is below 500 hp. Level up Arctic Assault (Q) and activate it charging towards the Wolves .

5b. Use Arctic Assault and jump through the wall attacking the Ancient Golem . Once you have his attention lure him and his Young Lizard 's to the side bush and activate Flail of the Northern Winds. Keep reactivating your abilities till the Ancient Golem is below 500 and activate Smite. Level up Permafrost (E) and head towards a priority lane to gank.

6a. Activate Arctic Assault and jump through the wall knocking up the Giant Wolf and Wolf 's [sic] and activating Flail of the Northern Winds mid charge and attack the Giant Wolf . Activate Permafrost. Once that camp is clear head towards the Wight and use Arctic Assault and Flail of the Northern Winds simultaneously activating Permafrost once Frost has manifested. Use Smite once the Wight gets low. At this stage you have a choice to gank again if you feel you can or to return to shop and buy Spirit Stone, Boots, 5 Health Potion's and 2 Mana Potion's.

6b. Once you have ganked one or two lanes return to jungle and head towards the Wight camp using all you abilities. When it gets low enough activate Smite killing it and head towards the Wolf camp. Activate Arctic Assault and Flail of the Northern Winds simultaneously and once frost has manifested activate Permafrost. Once camp is cleared return to shop and buy Spirit Stone, Boots, 5 Health Potion's and 2 Mana Potion's. Always ensure you are contributing to the warding process. It is not just the supports job. It's every ones.

1. When approaching a lane for a gank lets say bot lane you need to announce your "On your Way" in advance so your allies can inform you of which bushes are warded.

2. Plan your route carefully. If the bot lane is warded us an approach that enables you to gank from another angle or approach the bush from another way. Using Sweeping Lens from the ledge about the bush can enable you to deactivate the ward, use Arctic Assault to jump down and then remove it.

3. Now the enemy support and adc have no idea that they are about to be ganked. They will assume that their ward just timed out (assuming it's a totem). Now you can communicate with your team via pings to target the enemy ADC.

4. Wait for an opportune time to use Arctic Assault and Flail of the Northern Winds simultaneously knocking up the enemy champion and damaging them. Activating Permafrost will lock them down for a further 1.5 seconds enabling your team to pick up a kill or burn their flash.

4a. If you are ganking level 2, you need to choose a lane that is either being pushed or communicate to your ally to allow the enemy to push the lane. Once that has occurred you can engage the enemy activating and striking the enemy with Flail of the Northern Winds and immediately afterwards Permafrost. The gank will no doubt end with the enemy burning flash or if your lucky a kill for your ally and an assist for you.

All this could be over in 30 seconds from step 1 to step 4.

5. At this stage you can either stay and push lane, take dragon, gank another lane, return to jungle or go to shop.

1. Tank will initiate, with Sejuani initiating immediately after wards with her ultimate locking down valuable targets. If the Tank has no good initiation ability or incapacitated then the job falls on Sejuani to initiate with her Glacial Prison.

2. Once the fight has begun and the enemy team has thrown all it's CC at the tank, it will be Sejuani's job to secure kills by Flail of the Northern Winds/ Permafrost and to disrupt the enemy ADC's damage output as much as possible primarily using the Arctic Assault ability.

3. During this team fight, Sejuani will be releasing a constant output of damage through her Flail of the Northern Winds ability.

1. As a Tank, it will be Sejuani's job to initiate with Glacial Prison or if that is not available a Flash + Arctic Assault/ Flail of the Northern Winds + Permafrost combo to disrupt enemy movement, CC and damage output.

2. As a Tank, you will be forced to attract and absorb a large quantity of damage and CC by fooling the enemy into thinking you are a significant threat. During this time you will be required to continually reactivate Flail of the Northern Winds to give out a constant barrage of AOE damage, periodically activate Permafrost to lock in enemy champions which try to flee or gain distance and periodically activate Arctic Assault to disrupt the output of damage from high class targets.

3. At the end of a team fight it will be your job to assist in the pursuing of enemy champions using a combination of Arctic Assault as a gap closer/knock-up, Flail of the Northern Winds to manifest Frost and Permafrost to reduce enemy movement speed so the team can assist in finishing off the enemy.

4. This stage your team needs to decide to either push lane, return to shop OR capture Baron Nashor if it hasn't already been secured.