Rakiata who?
I made an elemental crossbow varashta sorc this season as my starting build (goal was to exploit yoke of suffering's full potential, you can find poe ninja below, don't be fooled by the dmg tooltip, it kill ubers before they can move) and so since I was in the intel side of the tree I used my weapon swap to maximize exposure (with whispering ice) and curse magnitude. Here with some non-optimized gear I'm reaching a total of -338% res (that's -169% on bosses), meaning it's better than rakiata's. I use cursed ground support to apply the curse and icestorm (which comes with the staff) with prolonged duration and potent exposure to make the exposure last longer. This tech doesn't require much investment apart from your weapon swap and a few sockets at most so it can be plugged into many elemental builds.
As it is now, it requires you to cast the spells with your weapon swap, so I use it mostly for bosses, but i might cast icestorm on bulky rares in juiced maps once in a while. If you have a skill dedicated for mapping, it'll propably better to use rakiata on it, and remove it or use another skill for bosses.
Here's the poeninja: https://poe.ninja/poe2/profile/McZaatar-0907/character/Dendjala
I might make a build showcase if people are interested, it's a fun league starter build. With yoke and the electrocution node on the tree, enemies have 120% damage taken, more if they're cursed, on top of the giant res drop, plus you benefit from a lot of the "damage against enemies with ailments nodes" so that's why the tooltip is low (explosive grenades indicate 60k in game but they hit bosses for like 2M)
at first I was playing with permafrost bolt with frost nexus + navira's fracture + fragmentation rounds, it was a fun combo and really strong for leveling but I couldn't scale navira's fracture damage in late game (I had command + minion nodes on my second weapon instead of the curse/exposure at the time)
Hope this inspires some of you!

