The usual thing, the tank updates have been out for a day on the PBE at this point, feedback and bugs and usability concerns are very welcome here
Will update this post as changes are made, until then fire away.
p.s. Since I saw this somewhere, her gallop animation when she gains MS should be back tomorrow.
W should be easier to hit, especially in the jungle
Casting E resets autoattack timer
CD 15 -> 9
No longer scales down with movement
Now ignores minions at 7 and non epic monsters at 14 (a la Garen)
2nd hit places a brief slow on enemies it hits, Sejuani is also slightly slowed when she is attacking (mostly to add the feel of weight, feedback here would be very appreciated)
W radius larger
Fixed a bug that caused Sejuani to move into the target when she right clicks them while casting W
Frost Armor no longer broken by minions or small monsters
Icebreker Damage: 15/20/25% -> 10/15/20%
Icebreaker Damage vs monsters: max 400 -> always 400
No longer self slows, not worth
W1 now knocks back minions and monsters
CD: 7/6.5/6/5.5/5 -> 9/8/7/6/5
1st hit Damage: 12/19/26/33/40 (+0.01HP) -> 30/35/40/45/50 (+0.02HP)
2nd hit Damage: 48/76/104/132/160 (+0.04HP) -> 40/80/120/160/200 (+0.05HP)
Bonus damage to monsters: 20% -> 0%
Happy with the latest iteration, toning down her slightly.
Hitbox: 160 ->145 (Spell was cheating, reduced to match indicator)
HP Ratio 1st/2nd: 2/5% -> 1.5/4.5%