[3.5] Immortal Crit Bladefall

To achive damage immunity we need to convert all received physical damage into other damage type and also obitain 100% resistances

30% 10%
50%
10%

For resistances we use

And lightning coil corrupt that was mentioned above
To make sure that out mana will never be restored - we use
Since we don't have any mana we need 0 mana cost, that's why I use poet's pen and frenzy linked with enlighten and reduced mana support.
Our flasks usually always ready, but you can run out of charges if you won't hit anyone.

You can try to find better enchant, I use this one because I sorrow.

Flasks:

Jewels:

https://pastebin.com/YN0Uj8wQ

-max res affix
nemesis (Nullifer affix on mobs)

Map bosses:
Necropolis (spikes from underground)
Defiled cathedral (red beam)
Core (dot ground)
Dig (sand storm)
Lava lake (dot ground)
Forge of the Phoenix (it reduces fire res)
Death and Taxes (most of boss' spells have ele pen)
Hall of Grandmasters (most exiles have ele pen)
Atziri's trio (dot ground after death)
Atziri, Queen of the Vaal (giant flameblast)
Shaper (bullet hell and frostbolt)
Elder
Delve

If you have died from something else, probably someone reduced your resistances via frost bomb/scorching ray.