PoE Ice Nova of Deep Freeze, Cold builds

[Level 89 Hybrid Crit Ice Nova of Deep Freeze Hierophant \[3.23\] (pobb.in)]( This is my only 4th char; I'm not using any guides. Still looking for a good body armor to replace Ghostwrithe with. But at least this build freezelocks 17M hp map bosses. I might try Elemental Proliferation Support because sometimes projectile mobs still can snipe me from beyond the screen. I have Frostbolt because I switch to Ice Nova of Frostbolts when I need extra DPS and I know exactly where the monsters are (I do that for expeditions, for example). But mapping, delving, etc. with