About myself: my name is XerroC, my Solo-Q Elo is currently 1850 - Platinum 5 (op.gg)
I think people underestimate the true power of Sejunai.
I suggest Sejunai a hidden OP-Champ due to his Medium Dmg Tank, and High CC abilities.

Sejuani has a huge potential with AOE-Ultimate Champions like Orianna, Leona, Graves ..., just to name some of it.


For beginners: dont overestimate Sejuani and NEVER underestimate enemy junglers, you can be easily counterjungled which makes your earlygame like hell
This is why I start with Warding Trinket, and swap to Sweeper on minute 15-25.

Pros:

Cons:

- Hard CC ( Glacial Prison)

- weak earlygame

- huge slow amount (mainly Permafrost)

- vulnerable to damage junglers ( especially Lee Sin / Vi)

- perfect initiate and escapes with Q / R

- spells rarely scale with AP

- high mana cost

I use those against an AD and Moderate AP Team:Offense Tree:

Sorcery is essential to go on to
Expose Weakness - which is extremely useful in ganks and team fights
Mental Force and Arcane Mastery - gives you a good early damage push for clearing



Defensive Tree:

Recovery is essential for early survival in Jungle
Veteran Scars + Juggernaut is standard Tank Mastery
pick 3/3 x Hardiness if you Play against at least 3 AD Champions
pick 1/3 x Hardiness + 2/3 x Resistance if you play against at least 3 AP Champions
Perseverance is mainly for sustain in jungle, and to sustain through team fights
Swiftness is important to keep up to prevent being kited from ranged champs

Tenacious is good, but i don't want to loose Fleet of Foot
Legendary Guardian is not valuable in my Build because i have enough Armor jet (and the 4-20 armor you get in team fights does not scale well then)

You can skill Oppression or the 3rd point in Hardiness , it depends on how you play.



Utility Tree:

Fleet of Foot is extremely important for Sejuani because his base movement speed is low

I recently changed the Runes to the following:
Movement Runes:

Greater Quintessence of Movement Speed 3x is essential, as base movement speed is low - you will have easier Engage and chase, in addition it helps to travel from lanes to lanes



In Case you don't own Movement Quints, just go with your standard AP Build, that should do it aswell.

There are 2 ways to skill:

a) Max Flail of the Northern Winds (W) first for fast jungle clear - and if your chances to land a successful gank are rare (e.g. Tristana, Zed...)

b) Max Permafrost (E) if you intend to gank a lot in early game - the slow amount is immense

Option b is what you should focus on though


To max out 2nd i prefer to take W Flail of the Northern Winds, it just gives you huge AoE Dps, which helps you more a maxed Singletarget dps [Q] (which will most likely not hit the enemy adc/apc)

I have tried many possibilities, also with RoA etc, let me explain why i build as i build:

Why do i buy 2nd item Sunfire and not Rod of Ages:

its because with Sunfire you have quicker jungle clear
and you have more armor for towerdives at lvl 6-11 (depends on how good/bad your game goes)



always in my Build:

Mercury's Treadsi, with Homeguard

Spirit of the Ancient Golem

Sunfire Cape

Liandry's Torment - Only buy this if enemies have at least 2 Tanks

Oracle's Lenses Oracle Lenses MUST be bought when the enemy team has a champion that has the chance of getting invisible (e.g. Vayne, Akali, Kha'Zix, Shaco...) otherwise its enough to buy the Sweeping Lenses

There are some Rules you need to follow to keep rising in divisions / leagues.

Warding

Until the Support has Finished his Sightstone, it's very very useful to start with a Warding Totem as Jungler
Additional i get a Vision Ward on my first return to base - then i have 2 usable items to place a 60sec. Ward PLUS a Vision Ward.

The Yellow Ward is placed always, no matter what happens at the begin of the game (at around 0:30 to 0:40 - depending on how fast you are)


Place the Pinkward after your fistback, and place your Totem ward and your Item Ward on Cooldown on following positions (in early Game)



In Mid and Lategame you need to ward other bushes, but I can't give you a 100% position because it depends on the individual game.

Pings

Make sure you only give Pings if you are really in range to attack someone, otherwise this leads the lane-player into confusion

Chat

Do not spam, hate, flame or cry if you are dead. - It does not help anybody.
Instead try to only POST important things in chat like "i'll get red and gang mid then"

Keep positive

In Case your team falls behind in kills/objectives - DON'T give up.
Never surrender. Even if someone quits or has a DC in your team, there is the possibility to win the game. Just wait for a mistake of the enemy team.

In general you have to prefer minion camps like wolves and wraiths, because of the huge amount of AOE damage.

To begin with, you can start with blue Buff or Red Buff, there is no big time difference.

A) - start Blue Buff:
Try to get as much help at your blue Buff so you don't need more than 1 Health Potion
After you can run straight to Wolves/Wraiths and after to Red Buff on Level 2. Take Red Buff, head for Golems (after Golems your health should be something around 3/4 HP) and you can gang bot/top.


B) - start Red Buff:
Try to get as much help at your red Buff so you don't need more than 1 Health Potion
After you can run straight to Wolves/Wraiths and after to Red Buff on Level 2. Take Blue Buff, head for Golems (after Golems your health should be something around 3/4 HP) and you can gang bot/top.


About Smite:
Use Smite pre level 6 on Cooldown, after that it should be around minute 10. Now you have to have vision on Dragon and you need to have every now and then vision on the enemy jungler
if there is the chance that you can kill/compete/steal dragon, spare your Smite, if not, you can just use smite on cooldown in jungle


On your first back you pick up a Vision Ward for your Midlaner.
Place it in the little brush in top river or lower river (Your Midlaner should ward the other one)

so this is not really easy.

1) Tell those mates that loose the lane to freeze lane / farm under tower / play safe / don't risk a death
2) focus to win ONE lane, that doesn't mean ignore the other loosing lane, but prioritize your gangs on ONE lane.

3) in most cases the lanes will blame you - IGNORE the flamers, in extreme cases mute toxic persons, you will loose too much time arguing or defending yourself, focus on playing and trying to give someone a comeback in your team.

(Screen captured on Sept. 7)

As you can see, most the build works, and sometimes (as with any other champion), you loose

This Guide is frequently updated

I am thankful for any questions / suggested improvement / discussions


If this Guide helped you, give it a thumbs up
Thanks