PoE Shockwave Totem, Templar builds

So far I I copied most of this from some easily available SW Totem builds, which are way, way too expensive though. The goal for this is a sub 5d char that excels at sanctums Basic concepts: Full cold convert, hrimsorrow rn, later might go veiled mod 35% phys to cold 40% Mastery +?? Heatshiver go hiero, get battle mage from forbidden jewels (way cheaper than getting +1 totems as an inq, that alone is 10 d at least) Use marohi+astral projector Go crit, its convinient with the the skills/path, but maybe I should go nc with hiero? (No idea) Creeping frost Totem for chill Arc brand/ass M

I am like in dire need of help... I don't know what to improve on next honestly. I can farm T16 maps slowly, but I still do get 1 shotted lol. I've seen people running Hex Master on PoENinja and some people don't even run Vitality or Determination. Can't fit Vitality in at the moment. I prioritized Determination over Vitality. LMK what you think.. TIA. Link to my POB:

Wanting to share my shockwave totem hierophant build. It feels incredible! I had a few problems recently that I solved, and this build is walking over sanctum and t16 juiced maps without issues. Sharing the PoB to hopefully both 1) solicit feedback to improve the build and 2) encourage others to try this build. This is by no means original (mathil loved it last league), but there are no build guides so I wanted to share: The build has defense: 90% armor with determination everything is chilled/frozen taunt from totems

I am planning my new league starter for 3.18. This is the current "best" one I could come up with, that shouldnt be too expensive to get close to.

A really fun build that i play every league since the introduction of the Astral Projector Ring It makes your nova skills automatically target closest enemy, wich makes Shockwave Totem a totally viable skill now! If you are like me, and your computer is shit, and want to enjoy a relatively safe build and looting items while your totems protect you? Then that's the build for you! It is not a league starter since you need the Astral Projector ring, but since they added the atlas passive, people get Metamoprh encounter more often, i seen