PoE Elementalist, Hypothermia, Vaal Arc, Chaining builds

Hi all, i really like deleting legions with vaal arc and the arc ignite mechanic. I was wondering if one could use heatshiver to take advantage of shaper of flame's extra damage if the hit is mostly fire damage. And we could use freeze by converting lightning damage to cold with call of the brotherhood rings. The problem is getting enough freeze to break bosses' ailment threshold. Currently my POB is at 10mil and i think 25 mil in the minimum? The POB is half baked right now. Anyone wanna help me theorycraft this :P ?