So just some quick fixes for champions who just don't make the grade right now (because these threads don't come up enough):
Innate - Now slows for 15%
Q - After charging, Sejuani gains 10/20/30/40/50 Armor and Magic Resist for 4 seconds. AP Ratio increased to .5
W - Increased AP ratio to .15
E - Increased AP Ratio to .7
R - Lowered CD to 120/105/90
Mantra - Now can be ranked like Jayce's ultimate. CD changed to 32/27/22/17. Max charges stored changed to 1/2/2/3. Also now grants passive bonus to MS of 0/10/20/30.
All other skills now rescaled to get rank 6 numbers at rank 5.
AA range increased to 525
Q - Instantly makes Twitch invisible. Now ignores unit collision for duration.
Q - Enemies can no longer see the drop reticule on his axe.
W - Mana cost lowered to 35
E - Ratio increased to .7 bonus AD
E - CD reduced by 2 seconds
Create Legendary tier item for Hex core
MR per level changed from 0 to 1.25