[1.2.0] Lord of Ice — Crit Icespear(60k effective dps/ VP /EB / Herald of ice/ Freeze everything! )

I've been using this build, and I must say, I've been clearing through most of it with ease thus far. Do you think that replacing some of the cast speed nodes with elemental damage nodes would be beneficial? I would think that adding some elemental damage would help with freeze duration and at the same time serve to help kill enemies faster.

But then again, I've been underlevelled for most of my playthrough with this character thus far, so that might be why I'm wondering this.