Shame this guide is being downvoted so much, but you'd expect that with a new champion :/

So anyways, I have questions.
Like... Rylai's and Frozen Mallet... why?
You already have a slow and a perma slow, so I see no reason to get an item that gives you more slow :p
you might be wasting some precious item space..
I also don't think Atma's is bad on Sejuani, say what you want but warmogs + atmas give like 200 damage alone.. but w/e
If you want this to be a better rated guide you might want to include more chapters, coding, pictures and such. I suggest you take a look at jhoijhoi's guide to making a guide (link in my signature).

I wish you the best of luck with your guide, cmoosewylde.

Either you're lying, or it's not the build's fault. But thanks for trolling everyone down anyway.

Well i might try it sometime. Glad to hear that your thinking of making some changes :)

he is trolling, look at hes profile, he down voted all guides whit no reason. Hes reported!

frozen mallet is slow overkill, get frozen heart instead etc

i tried it and died 30 times! thx alot

i tried it and died 30 times! thx alot

I'll be trying some other ideas, such as using a rylai's crystal scepter instead of the atma's impaler, but this build has been very effective. The Atma's works because of all the extra health built into Sejauni with this build. I'll post my results with some AP in the build. Thanks for you suggestion.

I include Boots of Mobility to engage in team fights and ganks where ever they may happen on the map. They provide the ability to be in correct position most of the time, and allow ganking opportunities that otherwise wouldn't exist.

Atmas Impaler is included because of the large amount of health in this build. Northern Winds scales off of maximum health. Since I chose to build that much health into Sejuani, it made more sense to include an item which benefits from said health. You will be doing plenty of damage with this build, trust me.

I dont see why you would build her with AD since all of her spells scale on AP.

Boots of mobility and atmas for an champion with ap ratios ?? wth

Good build