[OCC] CI Caustic Arrow - Atziri Down

Atziri: https://youtu.be/Gwu5DdbtjXQ
Olmec's Sanctum: https://youtu.be/PpPIiUlJqQo
Acton's Nightmare: https://youtu.be/A15cxdmspkE
Maelstrom of Chaos: https://youtu.be/VHoxuWTcqZM

Caustic Arrow - Conc Effect - Void Manipulation - Rapid Decay - Pierce - Empower

I find that without at least a 5 link the damage is pretty meh. You can find a basic 5 link +1 gems bow for pretty cheap (I got one for a chaos a month ago and sold it for a chaos yesterday). Empower is really good if you can find a 6 link +1 but it's the least helpful gem for damage (the other 4 supports are MORE multipliers).

Lightning Arrow - GMP - Curse on Hit - Vulnerability

You can use whatever curse you want here: temp chains and enfeeble are other options, but Vuln increases DoT taken, so that's what I prefer.

Vaal Discipline + Faster Casting

With no increased cast speed in the build, you pretty much need Faster Casting to use this in crunch times.

Blink Arrow (Faster Attacks)

I don't use Faster Attacks with this, but you can if you want to.

Discipline: It's a CI build, needs as much ES as possible. It adds over 2k es.
Clarity: With a 48 mana cost Caustic Arrow, you can OOM without clarity. I run it as high level as I can, I'm not having problems sustaining unless I turn off Clarity
Arctic Armor: Normally my third option, this is a good amount of phys mitigation (the fire mitigation isn't as important since I'm resist capped) and I'm not using the mana for anything else, so why not.
Purity of ___: If I'm going into an Ele Weakness map, I run Purity of Elements. Although I could switch it for Lightning since that's the only resist I'm not overcapped on. If you think you need more of a resist you should have enough mana to run it. Its just having enough Strength for Fire that's a problem.

If I was going to do it again I'd use an Eye of Chayula. Dream Fragments helps solve the mana issues and prevents freeze. +1 Gems six link is the most expensive piece of gear, I got one for 1.6ex. I probably spent slightly under 4ex total.

Another change for optimal DPS is to grab a Drillneck for more pierce chance and the damage modifier. Rearguard adds another layer of defense but it isn't that helpful without increased block chance. I just found it while leveling and decided to use it. If you need resists you can grab some on quivers too.

Flasks


I have a phasing flask for running through tough mobs or if I get surrounded. The smoke flask is mostly just a secondary bleed flask, and I was trying a bunch of the new flasks to see if they were useful and I just kept it. Can be any flask you like, won't even need bleed if you can keep your anti-bleed flask up enough. I just tend to have granite and warding together because my panic button is 3. 4 and 5 are where I keep my quicksilvers, and one of them is increased charges/anti-bleed. Mostly flasks are just personal preference in this build, there's no requirement like with some builds.

https://www.pathofexile.com/passive-skill-tree/AAAABAMBAAFvBAcHHg18DkgPqxB7ES8RUBGWE20UCRV-FdcWvxslG8gdTx8CH8ci9CSLJogrCiymLL8tizQKNbk2xTdmN4M9X0kTSVFJsUuuTLNSU1KvVmNXK1fJXEBca2f8adhqjGwLbRltbHWedoJ-oX_GhEiExYauh8uJ4It6j_qSdJMfkyeVLpeVl_SbtaEvotmm66crp5utSrDYtAy00bVItzC7Tbv8vYK-Or6KwQDBxcM6w23G98gMyBTK088Vz93Xz9lb2xrdX9-K4vfjhOZY53TpAuq662PsGO-I8NXxivVL9W_31_k3_rP_kw==

Make sure you use Energy from Within on the Life/ES cluster between Witch and Shadow, it gives a crapload of ES with that jewel and you kind of have to take the node because there's not that many other accessable ES nodes.

Is this Atziri viable? Yes. https://youtu.be/Gwu5DdbtjXQ
Is this Uber viable? Don't know, don't intend to find out.
Why no Eye of Chayula? Because I didn't want to. I should have, it's definitely better, but I wanted to see how it worked without the Eye.
What about CWDT setups? Yeah, should have done them, didn't because I was lazy. I have no reason other than that. CWDT + Molten Shell + Immortal Call + Increased Duration. I just have no way of generating Endurance Charges so it'd have to be Enduring Cry. This build does not like to stop around monsters.
I think you should have taken this cluster/shouldn't have taken this cluster! That's fine. Take it. This is just a guide, you don't have to follow it to the letter.
Can I go MF with this build? While MF Caustic Arrow is pretty common, this build is actually really bad for it. CI + MF is not the greatest combination. But there's plenty of MF Caustic Arrow guides on the forums, I would check them out.