Here's kinda what I'd like to see change wise:
1. Sindragosa's Fury - Change from instant massive dmg & slow to instant medium dmg and medium dot. Then decrease cooldown. I believe the cooldown is so high because it's instant massive burst and utility, so decreasing the cooldown without decreasing the power I doubt will ever happen.
2. Obliterate w/ Killing Machine - Make Oblit's crit damage scale with crit when it consumes Killing Machine. Not 1:1 crit to crit dmg ratio though as that would probably make it too strong. Probably start off with 1:0.5 and adjust accordingly.
3. Obliteration - During obliteration user has fixed 1.0 gcd. Can't be increased or decreased by haste or external effects during that time.
4. Bad to the Bone - Just fucking crank this % through the roof to make Double RI competitive with RI/FC for fuck sake already...Maybe something like 33.3% increase per point (100% at rank 3, 200% at rank 6).
5. Chill of the Grave - Decrease from 8 yards to 5 yards and apply to all spells instead of just frost strike
6. Crystalline Swords - Boring animation, spice it up some please
7. Wraith Walk - FIX IT, enough said
8. Winter is Coming & Blinding Sleet - Combine these ideas a bit into: Blinding Sleet - Targets in a cone in front of you have their movement speed reduced by 50% for 8s. If the target was facing you it is stunned for 4s. 1s cast time.
9. Abomination's Might - Increase the % already...
10. New Winter is Coming - Single target movement speed reduction from 0% to 100% over 4s, after slow the target is stunned for 4s. Doesn't apply the stun if the snare is removed before it's run it's course.