[2.6] CwC Crit Occultist ChaosStorm {Shaper and Uber Atziri Viable!}

There are only 2 completely necessary items for this build to function that you will need and that is and This is because we convert our Fire damage to Chaos damage so that we can stack Poison - which, by the way, Firestorm stacks ALOT of.

CURSE EXPLANATION: We cannot go below 35% mana or we will take 100% increased spell damage from Infernal Mantle this is why we NEED (need in bold because it's absolutely necessary) an Enlighten 2 + 4% reduced mana reserved node or an Enlighten 3 so we are at 64% mana reserved with Discipline and Blasphemy-Temporal Chains.

In the 6L swap Added Chaos to Concentrated Effect for bosses

For the helmet I recommend any of the Firestorm enchants - here is a Hubris which I bought and crafted for 30 chaos (NOT required, end game can be completed without an enchant, it's just very nice to have.)

For the gems I only really use this Orb of Storms - PCoC setup against bosses as we do not get the benefit of Forbidden Power.

For the Gloves we are almost required to go Voidbringers. This is because they increase our crit by a huge margin and because we are using Wither in a 2L (Because only CwC affects it) the Increased Mana cost of Skills mod doesn't affect our Wither at all really - this is without the huge 200+ ES that the item provides aswell!

There is a few uniques such as Steppan Eard's which can be very good for this build but we will have trouble getting a 0.6% leech enchant on them without spending exalts and we are already lacking on resists which we will have to make up for.

I highly recommend a rare pair of boots with 20+% movement speed (because that's our primary way of moving between attacks as Whirling Blades is quite slow due to us not having Attack Speed on the tree.) and 150-200ES with some resistances.
Use the Rare boots as a reference for gems - not the Steppan Eards!

There isn't much to say here really - for Rings you just want to make up for resists that you are missing. If you can get flat ES roll with an open prefix that would be very nice. These are the ones I am currently using.

For Bosses you may need a -7/-8 Elreon Ring as we may dip below 35% mana due to not having Leech from boots. On bosses with adds this is not necessary!

For the Amulet it's pretty much required that we use an Eye of Chayula for the stun immunity because even if you did have Skyforth we only have a small mana pool of 800ish (you could take Mana nodes but that restricts your damage) and we will lack resistances. Not much else to say here.

For the belt we just want to have a Crystal Belt base with flat ES and resistances - Flask duration and effect would be nice but we don't need anything too fancy. Get what you can afford.
(ignore WED on the belt, it does nothing for us.)

For jewels there are only really 4 mods that fully benefit us and we should definitely prioritize as they all "Double Dip" with our Firestorm and Poison.
Area Damage
Fire Damage
Chaos Damage
%Maximum ES

For our Flasks there is two flasks that I would argue are necessary; They are not too expensive and they increase our DPS and leech so high that we can facetank Shaper's Beam.

The other flasks that we need will have to include ATLEAST Anti-Bleed and Anti-Freeze as we do not have any sources of freeze or bleed immunity. An anti-shock flask is also quite helpful for general mapping.

READ ME: Flask management is EXTREMELY important on this build! We usually get our leech against trash mobs through the leech enchant on our boots but against bosses this DOES NOT work. Try to have both charges of Atziri's Promise up as it helps INSANELY with facetanking bosses (tried and tested and can facetank Shaper Beam with JUST this flask for leech.)