Think I might remake my original "cold/crit" witch.
My buzzsaw scion outleveled her last season to become my highest character. And she had been sitting in standard since beta.
went back to play her a bit during this waiting period.
She's old. Clarity/disc auras. Freezing pulse, lmp, faster proj, added lit. main skill. Cold pen+ice spear secondary. arc/spell totem/faster cast as shock/fun/range.
Frostbite and elem weakness. Some of this was changed at one point. frostbite added, and temp chains removed it seems. She predates ALOT of skills.
Her gear is TERRIBLE too. Shes in act 2 merciless... but she predates act 3 entirely.
First thing I did when playing her now, was swap added lit damage for power charge on critical. Not 100% sure on how the damage works out. The added lit, gave a secondary element, and stacked shock pretty fast.
Freezing pulse is 22% crit chance, and 300% crit damage with passives.
With power charge on crit, and the current passive tree, she gets 5 charges, pretty quick. for 37% crit chance.
New tree will allow a similar build. this is what she is now.
Passive Skill Tree - Path of Exile
Might try it with arctic breath or something though.
Or, doesn't even NEED to be cold. Would work with arc itself. Cold is mostly for the chain freezing, and pulse shotgun. Back when this build was a thing, pulse was the king of witch spells.