[3.11] LL Vortex Occultist (endgame/deep delve optimized)

https://pastebin.com/vvh9JdTs

Pros:
- over 1 mil shaper dps
- high EHP(about 13k ES)
- high block
- fast energy shield recharge and gain on block
- powerful and safe bosskiller
Cons:
- not a clearspeed build
- requires investment

Weapon: 1h with the cold damage over time multiplier and +1 to all cold spell skill gems, mandatory free suffix to craft "trigger a socketed spell when you use a skill". Any additional mods like spell dmg, cold dmg are also welcomed.

Shield: High ES base, importantly it should have gain%es when you block (shaper base)

Body armour: No other choice but shavs, possibly with +gems corruption if you are looking for final minmaxing

Helmet: ilvl 84+ hubris circlet, the best enchant is vortex cooldown recovery speed, but vortex duration or dmg are also fine. Try crafting with dense+frigid, aim for about 300 ES and enemies -cold, but not a big deal if you don't get it, other good stats are int and obviously resists

Gloves: Shaper gloves (preferably ilvl84+ sorcerer/fingerless base), either buy or craft dense+frigid, look for high ES and cold dot multi, then int, resists

Boots: Try to fill your resists there a bit, otherwise 30-35 movement speed, good ES, some good enchant won't hurt as well

Belt: Shaped crystal belt (use defence quality catalysts before rolling if you intend to craft), good mods include es recovery rate, es from body armour, flat es, max%es, resists

Rings: Temple mod flat and %es, int ,resists, save a prefix for faster es recharge craft

Amulet: Presence of chayula with tranquillity annointment

Flasks: One important flask for the build is rumi's, try to get max roll if possible. Otherwise utility flasks are a matter of preference. Personally I use quartz, sulphur, quicksilver and silver flasks, but you might also use granite or basalt (but quartz and quicksilver are highly recommended due to phasing+mobility). Just make sure to get proper suffixes : curse, bleed and ignite removal (since we get freeze immunity from ascendancy and poison immunity from soul of shakari)

Jewels: Watcher's eye with faster start of es recharge. Other good mods are : dot with malevolence, recovery with malevolence, gain mana as ES with clarity, es recovery with discipline.
Third one is energy from within, socket it near Melding.
Lastly other jewels, look for %es, faster start of ES recharge, cold dot multi, dot, spell dmg. Also fill resists and attributes if needed.

Void beacon->Frigid wake->Profane bloom->Malediction

vortex+ controlled destruction(awakened)+ elemental focus(awakened)+ hypothermia+ swift affliction(awakened)+ efficacy

storm brand+ frost bomb+ orb of storm (in trigger socketed skills weapon)

vaal cold snap+ hypothermia+ bonechill+ efficacy

flame dash+ arcane surge(low level)

vaal discipline+ enlighten3

malevolence+ blood magic(lvl20)

enfeeble+ temporal chains+ blasphemy+ enlighten4

portal/tempest shield/golem/other utility

Depending on your preferences you can either do your comfortable leveling setup and then respec, otherwise you can level from beginning as cold dot, start with frostbolt until you get cold snap, vortex, level as life based version, here is an exemplary pathing (you will need to spend some regrets once you transition to LL ES)
https://pastebin.com/jrAPmYLM

This is a high-end build version with lots of room for upgrades. It takes some currency to get going but is certainly worthwhile as this is extremely good build. You don't need everything to start but linked shavs and presence of chayula are mandatory. ES gear has always room for improvement so you might buy some baseline cheap gear and then slowly upgrade/craft if you are short on currency. The things that take build to another level but are not needed for the start are such as watcher's eye, lethal pride, tranquility annointment, shield with %es on block, enchanted helmet, powerful 1h, shaped crystal belt, awakened support gems.
We have high durability due to fast start of energy shield recharge with high ES pool as well as ES% gain on block. This means that there is hardly anything in this game that can oneshot us and at the same time as long as you can avoid taking damage for a second, we are recharging almost 7k ES per second. This means that the build excels at things like bosskilling or deep delve.
If you are looking for a build that combines maxxing out damage and tankiness, this is the build for you. Few versions of this build are the most preferrable choice for top high-level occultists so this variation has proven to be worthwhile trying out.
If you have any extra questions feel free to ask and I'll be happy to answer to you.
Good luck!