[2.6] UberLabChamp Facerolling Uber Lab farmer

It's not a league starter build, nor a map farming build. The single purpose of this build is Uber Lab farming. While it is not the fastest build around, it has a very strong defences which allow us to comfortably faceroll fully charged Izaro, Argus, and traps. If you don't like dying and wasting runs / or you're on Hardcore, this build is for you.
I play in Standard league so you will see some legacy items. While recommended, those items are not required for the build to work.
Even though there are plenty of recommended expensive items for the build which I use, this build can be made on a budget.

Edit: modified for more movement speed (and a bit less regen). Now has 127% increased movement speed (no flasks) with phase run on (which is true all the time).

Defence:
6.5K ES.
644 ES regen per second (> 10%).
Permanent Fortify.
Stun immune.
Freeze & chill immune.
Without flasks: 35K armour.
With flasks: 127K armour + flat 55% physical damage reduction (with legacy TOH).
As you can see, with this defence, fully charged Uber Izaro is easily facetanked (except high elemental damage buffs like essence).
With regen and high armour the traps become a joke as well. You can easily disconnect on spike traps and stay alive.

Offence:
Poison bladevortex, Izaro dies in few seconds.
nough said.

The key concept behind this build is using Low Life along with Champion Ascendancy. We get:
- 30% more spell damage thanks to Low Life.
- First to Strike, Last to Fall ascendancy node - 200% increased armour and evasion on low life.
- Permanent Fortify.
Iron Reflexes - all evasion we get from Grace and flasks converted to additional armour.
Thanks to low life, we can stack more auras: Grace, Determination, Clarity, Vitality, Discipline with 30% increased aura effectiveness.
Zealot's Oath - ES regen.
2 curses: Vulnerability and Temporal Chains with 20% increased curse effectiveness.
30% flask effectiveness.

For damage we dual wield Redbeaks, for 200% increased double dipping damage. Make sure one of them has Culling strike corruption for quickly finishing off Izaro on his 3rd (most troublesome) stage.


We also take 45% increased duration from the tree which allows us to maintain phase run through lab, and 20 stacks of BV without flasks (with some some mana & mana regen nodes from the tree and gear)


While 6-link is recommended, 5-link should be enough to start as a budget variant. Use Solaris Lorica for very budget version; in this case I recommend equipping ES shield instead of dual wielding RedBeaks (as Fredd32 suggested below), and adding spell totem + Wither to the build (instead of Whirling Blades I suppose).

We use The Retch belt for increased flask duration during Izaro fight. This give us enough time to comfortably finish Izaro while all flasks are up. As a budget variant a rare belt with %increased flask duration and armour can be used instead.


Not mandatory but very good amulet:

Stun immunity - good for low life, extra ES and chaos res is nice. A nice rare with es + %es and some dex/resists is good too.

Dream Fragments for freeze and chill immunity:

Very good for lab farming, especially when you're low life. Also gives us more mana and mana regen which is good.

The rest of the gear is ES armour with resists and some dexterty (we need it for BV).
Expensive high ES items are not required, the build will work with 5k ES just as well.

Recommended helm enchant: increased phase run duration.
Recommended boot enchant: movement speed.

Vinktar's

For shock - 50% more damage is not a joke.
It is recommended for all flasks to have two uses for Izaro fight (I didn't find myself needing two however) to be safe. If you dont have leg Vinktar's, another damage flask such as http://pathofexile.gamepedia.com/Sin%27s_Rebirth can be used instead. http://pathofexile.gamepedia.com/Atziri%27s_Promise can be used as a budget variant.

TOH

For physical damage reduction. Additional cold damage is also nice. Stibnite Flask with %increased evasion rating mod is a budget variant (for more armour).


Armour


Physical damage reduction and shock immunity (we need for Vinktar anyway). Should have affix with additional charges or reduced charges used to ensure two uses for the flask.


More armour, and curse immunity to deal with Fonts.

No need for bleed immunity flasks: any bleed we get in the lab is out-regened. Just avoid killing too many Corrupting Blood at once.

We don't take damage nodes (there aren't good ones anyway) on the tree. Instead we take 8 jewel sockets. One is Energy From Within, the rest are reserved for damage. Double dipping stats should be preferred. The order of preference:
Area Damage (double dips)
Damage (double dips)
Spell damage
Physical damage

https://www.pathofexile.com/fullscreen-passive-skill-tree/AAAABAQDAQHcA-4FLQxfDXwOXBFQFy8YVhhqGS4aPhslHKcc3B0UHU8dqh2-IWAi9CftKPopLimlKlMslC0fLlMvbzOHNbk8LUCgQYdFfkZxSbFLrkyzU6VV1lcNV8lYB1yKXz9hIWIXYpVko2TnaGVodGr6a9RsC20Zbztwu3TtdPF343gveWh673vUe9d8uHzlf8aApILHgwmDX4PMhJSE2YTviXGPGo9GkyeboZ-joS-nCKcrp5-pbqrNsnC0DLc-uJO5Hb6KwBrBBMHFxLjE9sauytPQH9Nv1fjXz9kT2VvZYdpi2sHhiOq66-7sGOxc74jv6_Gs85v3wfk3-ej60v5J

You are not required to be level 96 for this build to work. There is plenty of flexibility in the tree. Mana regen, cast speed nodes and additional curse can be ditched: cast speed we can get from jewels, and mana regen by equipping Rallying Cry / or leech with Vinktar's.

Skill point/Skill point/Skill point.

Main skill:
BV + Concentrated Effect + Controlled Destruction + Empower/Added Chaos + Spell Echo+Poison
Drop Empower/Added Chaos for 5-link.

Whirling Blades + Faster Attacks
Use to skip over traps / mobs.

Summon Stone Golem
More regen.

Phase Run + Increased Duration + Enhance
Nice movement skill, gives 62 increased movement speed with basically 100% uptime.

Orb of storms + Curse On Hit + Vulnerability + Temporal Chains
Nice damage boost and slow down Izaro.

Auras:
Blood Magic + Grace + Clarity + Enlighten
Determination + Haste + Discipline + Enlighten

https://www.pathofexile.com/fullscreen-passive-skill-tree/AAAABAQDAQHcA-4FLQxfDXwXLxhWGGoZLho-HKcc3B0UHb4hYCftKPopLimlLJQuUzOHPC1AoEGHSbFTpVXWVw1XyVgHXz9hIWIXZKNk52hlaHRr1G87dO108XfjeC95aHrve9R713y4fOWApILHg1-DzISUhNmE74lxjxqPRpMnm6Gfo6Evpwinn6luqs20DLc-uJO5Hb6KwBrBBMRYxLjE9sauytPTb9X418_ZYdpi2sHquuvu7FzviPGs85v2SPfB-Tf56PrS

https://www.pathofexile.com/fullscreen-passive-skill-tree/AAAABAQDAQHcA-4FLQxfDXwOXBFQFy8YVhhqGS4aPhslHKcc3B0UHU8dviFgIvQn7Sj6KS4ppSyULR8uUzOHNbk8LUCgQYdFfkmxS65Ms1OlVdZXDVfJWAdfP2EhYhdko2TnaGVodGr6a9RsC20Zbzt07XTxd-N4L3loeu971HvXfLh85YCkgseDX4PMhJSE2YTviXGPGo9GkyeboZ-joS-nCKcrp5-pbqrNtAy3PriTuR2-isAawQTEWMS4xPbGrsrT0B_Tb9X418_ZW9lh2mLawd-K6QLquuvu7FzviO_r8azzm_ZI98H5N_no-tI=