Ice Nova

i am having a blast with ice nova, no FP or anything can match the dmg it do (to whole screen).
I don't use faster casting or spell echo but; increase crit, crit multy, add cold, power charge.
Main dmg does not come from skill itself but from herald of ice and huge aoe; i crit, freeze and shatter all time.
Using dual divinarius and carcass with 5l, for tough mobs i use glacial cascade bcz it do some physical dmg to mobs with ele rezists and cannot be cursed mods.
Even if i have 6l carcass i still wouldn't use conc eff gem bcz the bigger area - the bigger herald of ice effect.

I played ice nova from start with dual lifesprig wands, on lvl 24 i use dual criss dagger with some spell dmg and more crit chance for spells and they carry me all way to lvl 66 when i switch to dual divinarius. Now i need to focus on getting more life and maybe ES

Forgot to say that i use 7 power charges and they are up pretty much all time.

Inquisitor with inevitable judgment, using ice nova with dual spell totem. 75 % Crit with 500 % crit multi. It clears groups quite well, but takes forever on rares and bosses.

Switched ice nova for shockwave totem and spell totem for phys to lightning and I've suddenly doubled or trippled my dmg (and can even use taste of hate). Same build otherwise. I was so angry, realizing I wasted so much time when I could have it so much easier. Though the low dmg is more likely spell totems fault.

Anyway, something here is clearly off-balanced.

Can this skill please have back its 100% damage effectiveness so that it can compete fairly with Vortex?

Hello, Ive just started plaing Ice Nova Witch. In my opinion the damage is not adequate to its mana Cost. 16 mana is huge amount while i have to use 6-7 Novas to clear a group of blue monsters ... I also use clarity but it doesnt help much. So In my opinion Ice nova needs mana cost decrease or dmg increase. Its realy pleasant skill to play, probably for a lot of new players its gr8 for clearing the path to end game but its hard in my opinion hard to pull out any good value when mana cost is so high and dmg is below decent level.

I've seen a lot of good feedback for this skill gem showing it has sub par damage, yet no buff for it for a few years now? Or did I just miss it?

Is there any footage of the new ice nova rework coming from 3.5?