So, sejuani is one of my fauvorite champion, but she isn't just so damn underrated , she's weak too compared the new and old junglers.... Supposevly a jungler is champ with a some kind of sustain, heals or shields (look diana shield, fiddle drain, ww passive etc..) but sejuani , called jungler in her description haven't any of these... why not give her some heals? just little...here's my propose:

-W : Northern winds : Sejuani summons an artic storm around her for 6 seconds dealing 12/20/28/36/44+(0.15%ap)+(1/1.25/1.5/1.75/2 % of sejuani max hp) magic damage each seconds to nearby enemy. Damage is increased by 50% against enemies afflicted by frost or permafrost.

New passive: Sejuani heals herself for 12/20/28/36/44 for each target afflicted by frost or permafrost hit by northern winds.

OR THIS, NOT BOTH xD

-E : Permafrost: Sejuani converts frost on nearby enemies to Permafrost ,dealing 60/110/160/210/260+(0.5%ap) magic damage and decreasing their movement speed further for e seconds.(New slow :30/40/50/60/70%)

New passive :Sejuani gains a shield of 10-20-30-40-50 for each frost converted in permafrost.

She's one of the best ganker and teamfighter, the ult is op as hell and the Q can let her run trought every wall....let's make her more viable! RIOTPLS

Sorry if my english is bad

She is viable, just not popular. Like nautilus, he is damn so op in gank's, team fights, but rarely you gonna see him in game.

Ive never lost a teamfight late game with sejuani. She might get some more sustain early game especially with the new jungle patch coming up

She's actually surprisingly good in the new jungle

And 1 or 2 of the new items really make her a beast.

http://www.youtube.com/watch?v=SUa3kbQQdps

yeah yeah, she's one of my fauvorite champ an junglers, but like viktor (cool and strong too...but underrated) or trundle... they are so good but there are a lot of better jungler, faster and stronger than sej (the op ult doesn't count xD) this can help to make her popular and a better jungler, u may play her more ap than the classic hp-tank build.

meanwhile, in pbe....

Sejuani
Northern Winds ( W ) duration has been increased to 6 seconds from 5.
Base armor increased to 20.5 from 17.5

I think she'll always be a bit underrated until they give her some sort of defense, her kit is amazing she just isn't so tanky for someone that should be a tank

But I still love her and play her