PoE Malachai's Artifice builds

&x200B; I'd like to think this build won't die in 1 hit by white t16 mobs but still squeezed some survivability in. I don't know how survivable this actually is. Also please let me know if I missed anything in the PoB that wouldn't make this build work &x200B; If anyone has close to enough currency (Probably 5 mirrors?) to do this I'd like to see it in action!

Just prior to league start, I theorycrafted a couple of builds: a Hexblast Occultist and a RF/Searing Bond Cheiftan. At he last minute I decided to go with the Cheiftan as the defences looked more solid, and I couldn't be happier. This has been the smoothest, easiest league start I've experienced, and one of the strongest builds I've played in my 1200 hours in POE. Thus far, I've invested a grand total of 25c on this build, and 22c of that was on the amulet. Close to 1m DPS with pretty average gear and cheap-as-mud uniques

Trying to rig up a flame-surge Kitava's thirst character. It'd be like playing melee, without being melee. I'm probably going to roll with it next league unless something overtly destroys the build. But looking for feedback on it. It's not terribly crazy in terms of required uniques, and has room for growth with influence-rare crafting. \editing to meet the "Share Your Build" requirements\ Flame Surge on a 6-link \[Pledge of Hands\] meets the 100 mana cost to trigger Kitava's Thirst, which has 3 spells linked on Arcane

This is what ive landed on thus far! big cast speed so im not locked in place for an eternity casting. MoM, agnostic and Acro/Phase Acro for defensive layers. Im very open to suggestions! sorta came to me while i was just sitting here. Pick away at the build!

Taking the base from jungroan's icyhot FP but now with pinpoint getting nerfed (especially with respect to mana sustain) but unleash getting out fine, thought maybe having two 5L FPs would do the trick. Means 8x (4 seals on each FP) damage from 2 casts, good for roughly 3-5mil burst damage with gear I feel comfortable attaining on a starter. Also pretty satisfying seeing the quadrupled up waves of ice blowing up mobs. Any thoughts for this vs. a traditional pinpoint self casting?