charge 4 to max at the start (+100% BASE armor so +225), activate 3 and you're ready to go

swap :

• can replace enemy radar (here because the kavat don't have it) by corrosive projection/sprint boost, infortunaly empowered blade don't work with non-shielded warframe
• can replace [Nira's Hatred] by [Amar's Hatred] (less health & duration & no slam dmg bonus, more armor & power & heavy attack teleport), i think this one is a better choice (if you don't dislike the teleport)
• can replace [Gladiator Resolve] with [Augur Secrets] (less health, more life steal & slow), [Armored Agility] (less health, more armor & sprint speed) or [Rolling Guard] (less health, 3s invulnerability & status cleansing, because carnis set grant you status immunity but not status removal)
  in both case you need to put a second umbra forma instead of a vazarin forma or you can put an aura forma to put steel charge
• with one more forma (or a non-maxed mod) [Hunter Adrenaline] is a good swap for rage (you can have 3 hunter mod on the Panzer Vulpaphyla and 2 more on the tigris sancti)

arcane true stat :

• arcrane grace : Rank 5 : On Health Damaged :
  9% chance for +6% Health Regeneration/s for 9s
  Cooldown (~9-10s).
• arcane [Guardian] : Rank 5 : On Health Damaged :
  15% chance for +900 armor for 20s
  not refreshable

so you maybe prefere the arcane blessing (+1200hp after 50 health orb) or molt augmented (+60% strength after 250 kills)
if you regen enough with gloom & dessication

shard :

• crimson : strenght (more lifesteal & slow, slow cap = 95% with 272 str), melee crit dmg (more dmg = more lifesteal)

loadout :

• primary : anything you love (if you use hunter synergy on the kavat a big crit chance is better)
• secondary : https://overframe.gg/build/315696/laetum/very-good-laetum-fok-armor/ but replace [Primed Heated Charge] by [Carnis Stinger], or better, replace scorch with a non max out carnis stinger, the important here is not the gun but the carnis stinger mod
• melee : https://overframe.gg/build/408356/pennant/heavy-pennant/ with [Life Strike] for mor health [Regen] & [Carnis Mandible] for status immunity & evasion (replace [Spoiled Strike] & [Primed Fever Strike], not the best choice of mod to replace but polarity force me to choose), again the important here is the carnis madible (and the heavy build for it) OR https://overframe.gg/build/457355/ (nepheri with carnis mandible & amar's contempt, the damage is not even half of the penant but the tp go twice as far)
• compagnon : https://overframe.gg/build/429924/panzer-vulpaphyla/viral-blood-bag/

things that can be interesting :
weapons who can access purity (AoE 25m 1,000 Corrosive damage with guaranteed proc, recovers 25% your max Health, Base Health increases by 25% for 30s)
this one (sancti tigris) : https://overframe.gg/build/454560/ or https://overframe.gg/build/454559/ (crit & henter munition but 3 forma instead of one)
this trash (furis) : https://overframe.gg/build/454535/ because the life steal on wing of purity affect your companion if he has link health