It's a solid build from my perspective, Grim.
I tend to not favor Icy Veins, though I suspect that's largely because I'm rarely on a team where I can make use of it effectively (it requires some coordination and cover).
The build I tend to use is:
Deep Chill - The increased slow makes kiting easier (or chasing) and makes aiming Blizzard and Cone of Cold a lot easier.
Envenom - Helps cover Jaina's greatest weakness, which is close-range melee-assassins
Frostbitten - Combined with...
Posted: Feb 16, 2015