PoB: https://pastebin.com/VF41jbZc
The goal was: non-meta useage of Nimis, able to tank/burst all ubers/sim30/deli80
I was playing dex stacking KB nimis deadeye and it was good, awesome clear, good st, but squishy af (since u must be at melee range all the time for full dps). So I theorycrafted a pathfinder based on 100% phys to ele + 90% res + perma flasks. Cyclone over KB because u can craft "hits can't be evaded" on weapon (only on melee weapons) and don't worry about any acc (and allows Second Sight keystone). I chose Fireball over Creeping Frost/Ice spear just because I got "your fire damage can shock" relic.
Nimis scales with additional projectiles: Dying Sun for +3, Sniper's Mark for +9, plus one base = 13 (I could even go for Forbidden jewels with Focal Point for additional +3-4 projectiles but it's expensive and overkill anyway).
Able to do every map mod by just swaping 1 passive skill point + pantheon.
With this build I did every content in the game (mostly deathless), hit 99 lvl by just mapping (first time ever).
Cost: self crafted all rares, bought Nimis for 15div, chest 10 div, ashes just dropped ;)
I also theorycrafted bigger tank with Eternal Damnation over Ashes (90% res), with 30% less dps, but even with this setup I'm able to tank uber shaper/elder slams, balls, sirius/eater beams.
Feel free to ask questions.
I can record some gameplay footage if some1 really want.
Mapping showcase: https://youtu.be/9q48K-Xb_mc (scuffed sound, dunno why)
Uber Shaper: https://youtu.be/0L7_PPgwNKk
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EDIT: If you don't have cdr on belt, boots, abyss jewel and lvl6 awa coc (52%+ cdr), do not allocate Finesse and change attack speed suffix on flask to inc crit chance. Otherwise build loses a lot of damage. That's why I didn't go for frenzy charges or onslaugh.