Crit Cold convert Dancing Dervish /No longer viable

Dervishes can now die from reflect, that means you need at least 1 Ghastly eye jewel with minion leech #% of damage as life.
Changed Necromancer Ascendancy for Occultist with cursepop and triple curse
Improved clear speed at the cost of single target.
lost few MDps but improved clear speed and defenses significantly.
Don't recommend this build for boss killing. Uber bosses not viable on this version of the build.Normal bosses are still viable with low investment.

3.18 changes[Old]

Build is still viable. but we lost some DPS and dervishes became a little bit dumber for some reason.
New version on 3.18 with occultist is coming, with better clear speed/immunity to stun,freeze and chilled. maxed chaos res, 100% crit chance for dervish and 10.2m dps on Sirus.

3.17 changes[Old]
This patch Dervish got few buffs and a big nerfs.
Let's start with buffs

This patch Dervish Duo got removed, meaning we only have Dancing Dervish sadge,right? No, even tho upgraded version got removed. base type got BIG buffs.
Now we have 2 dervish from base type and not upgraded.
And second part is that we can trigger Rampage with HITS.
THIS IS WHERE THIS BUILDS SHINES
NOW WE CAN JUST ATTACK ENEMY AND TRIGGER DERVISH, meaning we have 3 open flask slot. Yay to granite and quartz flask.

And with great power comes nerfs.
Sadly dervish cyclone got reworked and now it can't be supported by ruthless and multistrike support gems.
But this isn't the biggest problem....
Dervish became more stupid, when i started playing with dervish in this patch i didn't notice it instantly, but you will feel annoyed when your dervish get stuck in corner or just spin from one target to target without dealing enough damage, sadly there is no fix... or is there?
For ours cry of help came Ancient Skull making our dervish go crazy flying from one corner of screen to other. removing their dumb AI to same Ai in 3.16 and before.(they still gonna target enemies behind walls with Ancinet Skull, but they atleast use pathfinding when you open door to find mobs)

level 91 gear

https://pastebin.com/78YWkqVe

Dancing Dervish Reaver Sword Unique

Main colors
Power Charge on Critical+Critical damage support+Minion speed+ice Bite
Other colors:
(From best to worse DPS)
Blue:
Minion damage support
Red:
Elemental damage with attacks/Damage on Full life
Green:
Added cold damage->Cold penetration

Links:
Determination + Vaal Molten Shell + Chaos golem/Summon Holy relic + Feeding Frenzy
Or
Mark on hit + Assassin's mark + Determination + Vaal Molten Shell
Lab enchant:
Assassin's mark(best chant) ->Punishment curse effect -> Phase run duration.

Queen's Hunger Unique body Armour
With Dexterity or resistances
Expensive variant with %Life as bonus ES.

Gems:
2 Link:
Awakened blashphemy + Frostbite
Other links:
2 Link:
Mark of hit + Assassin's Mark
Summon Chaos golem/Summon Holy Relic + Feeding Frenzy
Punishment + Desecrate

Triad Grip Mesh Gloves Unique with 4 green sockets makes our dervish convert 100% physical damage to cold.
Gems:
4-link
Dash - Phase Run - Second Wind - Cyclone
Lab enchant:
Commandment of Grave

Darkness Enthroned BiS ONLY WHEN YOU HAVE GOOD ABYSS GHASTLY JEWELS
If you don't have good jewels then just get rare Stygian belt/Leather belt:
-Life
-Res
-Strength
-Flask effect

Rare boots with Armour/ES base.

Mods that you want to look for
-Life
-Movements Speed
-Armour/ES inc%
-res
When you get your desired boots
Roll for Greater Exarch mod - Drops brittle ground while moving
This mod will cap our crit chance and increase damage output by 30~40%
tip:You need to walk on mobs to trigger this effect or just run away from them while they aggro on you
Gems:
4-link
Precision - Hatred - Vaal Haste - Generosity
Don't use normal Haste aura, we only need Vaal Haste buff.
Lab enchant:
Inc Movement speed if you haven't been hit recently -> Regenerate 2% life if you were hit recently.

Rare Amulet/rings - stats that you should look for
-Life
-Dexterity(if needed)
-Res
Good base for rings would be Vermillion rings with fertile catalysts
Amulet Either Marble or Onyx base

Anoint:
Whispers of doom - best annoint for dps. (use frostbite as second curse)
Good Anoints are:
Vampiric Amber-Teal-Violet
Diamond Skin Sepia-Teal-Opalescent

Cluster Jewels:
2 Large Cluster Jewels - 12 Passive skills minions damage
-Notable passive - Vicious bite
-25%-35% inc effect
-Dexterity
-all res 3%
Small Cluster Jewel - 2 Passive skills Armour
Notable Passive - Enduring Composure
Small Cluster Jewel - 3 passive skills Reservation efficiency
Notable Passive - Uncompromising
Abyss jewels:
Mods to look for:
-Life
-minion deals increased damage if you've cast minion skill recently
-Minions deal # additional cold damage
-Minions movement speed
-Taunt on hit
-!!! Needed for reflect maps 1 Ghastly eye jewel for minion leech #% of damage.
Try to get Corrupted blood cannot be inflicted on you on of your jewels

Good unique flask would be Blood of the Karui/Rumi's concoction
Writhing jar is needed for us to keep rampage during invulnerability phases.
Quartz flask is gonna save you alot when you run through packs. because our phase run doesn't have 100% uptime without lab chant and enhance you will get stuck sometimes
Quicksilver flask with movement speed and inc effect is must have for smooth clearing.