This is mainly a presentation of a build that I have created: I do not know of any other guide having this setup, but it could just be because I did not look hard enough :D At the end I do have a question about survivability, though.

https://poe.ninja/poe2/profile/RobbingDaHood-2904/character/SovnigKartoffel

1. So the basic idea were to utilize Eternal life in two ways:
2. Avoid negative life impact from different skills. Here I quickly thought of:
   1. Rage
   2. Savage furry
   3. Sadly "Extraction" only works on spells ;(
   4. I purposefully do not state it as avoid life costs, because that does not work with eternal life.
3. Constantly be on low life, mainly thinking about:
   1. Execute III
   2. Direstrike II
   3. Maybe go crit and pain atunement
4. I really do like energy shield a lot because I can get a giant pool of it and it regens fast.
   1. So I did not explore hybrid armor and energy shield, even though I already have some points there.
5. Sapphires can get "damage when shapeshifteing" and "Energy shield", which is neat.
6. Eternal life makes me immune to bleed and poison so together with the Dousing charms, then I should avoid the wast majority of damage over time that could delay energy shield recharge.
7. I also freeze something once in a while to keep "Bahatairs vengeance" active.
8. I did not play a herald because the AOE on shred seemed fine to me.
   1. I am not sure Overwhelming presence is the right alternative, just trying it out for now.
9. I tried bear first because it had a lot of rage mechanics, but I did feel like it were a bit clunky (and powerful, wow it really felt like a hard hitting killing machine). At least compared to the wolf, now I am just jumping around all the time :D But I did not try out any "rage spenders" because I liked the idea of steady high rage: So maybe rampage would have changed my mind :thinking:

So in summary: I get max rage and do not spend it and activate fury once in a while. I just shred all day long.

My experience is that I deal crazy amounts of damage (I do not have any video, sorry) but only rares with some specific modifiers survives more than 4 seconds on T15 map. I killed Aziri the other day without any issues. I am not saying this to brag (and likely others reading this could outshine me with their fancy builds any day): It is just the first time I have played such a powerful character :D

So the questions:

Sometimes I just take enormous amount of damage: The "life leech as energy shield leech" is my latest attempt at mitigating this, even though the leech is fine then it is not significant: I will likely just get back to even more damage.

I have not identified the issue yet and hope you can help me. I do experience it the most with some Abbyssal rares: Suddenly my energy shield just starts dispersing at a fast and steady rate. I did also experience it at a over-juiced temple: those lightning guns are crazy, but that were heavy lightning explosions, no "steady rate there" :D The temple is also a bit bad because I cannot flee to recharge energy shield.

I have a sense that I have a hole in my defense somewhere: Could it just be the physical damage? Would armor even help then? because don't I need to stack that up a lot to help one heavy hits? Would that help on damage over time from Abyssal rares?

I am looking to make my build more Tanky because I am a casual player that does not mind killing takes longer time. Currently I die every second map to something, and I die several times in the temple.

PS: Also feel welcome to give general advice and tips on the build.

PPS: Thanks for reading this far :)