I used to jungle sejuani alot. Check out my eune account ( pacyfa) i have 92 wins/ 80 defeats as her mainly as jungler. some defeatsd were support/ mid testing.

Seju has great input in teamfights late game as long as team has confidence in you and folows your initiation.HOWEVER, her early game presence as a jungler is very low.
She can ASSIST lanes by ganking, but her damage is very low, and if lane isnt joining gank or very far behind sejuani isnt able to do much.

This has a very negative psychological effect on team, so in mi/ late game when you become actiolly effective in solo queue teams dont folow your initiations and waste your whole potential.

This sums up in sejuani being bad pick. As you see from my number of games with her i like her alot, but her low damage makes her bad pick for solo q jungler.

yeah, she's tier 2. Better dodge!

the reasons for people that Q dodge are out of my grasp. and the ones that do it in ARAM are mind boggling to me

Not a ranked player, here, but hey, might as well share the piggy love.

I found Sejuani to be quick to pick up. However, mastering her is trickier. Just using her ult whenever it's ready is NOT the way to play her (obviously). It can be devastating to the enemy team if you just save it for THAT moment. They know it's ready to go off, they expect it and, to some extent, fear it. That stun-time is a game changer, when used properly. The slows she constantly inflict are quite the nuisance, and the charge that can go through forests is, to be honest, pretty sweet.

Careful in the early game, and you should do just fine. Once she gets all that health you'll want, she actually has some very decent power (although not in a 1v1 situation). She needs teammates to survive fights against the other team, aside from situational fights where the opponent is caught unaware or is already somewhat weakened.

Secret to dishing out a lot of damage (though not in bursts) is maxing out her W early. The charge (Q) is maxed out last.

As a jungler, I find she lacks a bit of suvivability early on, so I'd rather play her in lane, but if need be, I'll jungle her gladly.

im sorry but i just thought how funny/ironic it is that you don't have a badge.

No offense intended but, i lol'd at this thought.

You just need to know when to pick her. Like when your opponent picks jungle Ashe or Heim, you're good to go.

I have a friend that plays Sejuani. Everyone tells her that Sejuani isn't a good champ, but she enjoy playing with her. At the end of the day, if you can say "I had fun playing today!", you winned

I really love Sej, i think she can be crazy good, but base stat wise, she is weaker then many. Just hard to get her well played, most people cant i feel.

People dodge when I play sej all the time. I still usually can carry the game when I pick her though.

You'll have what?