Freezing pulse is mostly for closer-quarters shotgunning, it is pretty robust if you understand how to develop around it. Ice spear for crit-focused builds, it shines at mid-long-range. Glacial cascade is a solid selection if you would like to try an AoE-tagged ability. Added rewards of GC's dual-damage nature include less vulnerability to elemental reflect (a danger for any elemental caster) together with additional effectiveness vs. hugely cold-resistant mobs (because of Phy's dmg element).The cold snap is indeed a difficult one, but its harm is high. Either way, it's going not to possess the DPS of other cold skills, but you'll be able to make superior use of its great freeze likelihood to perma-freeze all enemies if combined with elemental proliferation. Ice nova's base harm is low at high levels, plus it needs you to be close to mobs for maximum effect, so it is a no-no. You might try it as a kind of utility trap or totem, I suppose, but you'll find far bet...
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