[3.0] Alternative approach to essence drain (videos included)

*Can start with little to none investment and make it shine once you can afford bis items.
*All endgame content viable.
*Good at endgame labyrinth farming.
*HC friendly.
*Kills quietly.
*Easy to kite.
*Insane regen if your ED spreads over a few enemies.
*Pleasant mapping. Can do any map mods, though no regen is slightly annoying.

*Need to learn boss mechanics to be good at killing them.
*Requires patience.
*Uses a mana flask to solve all mana problems.

With 6 frenzy charges and arcane surge:

https://www.pathofexile.com/account/view-profile/obscure_anonymous/characters

Level 95, 125k dot:
Atziri: https://youtu.be/q-cc1VufIfI;
Chayula: https://youtu.be/OYu_x-sMOUA;
Uber https://youtu.be/1mnU4u4xVZU;
6 key uber lab run: https://youtu.be/RIHKsqlXsDk;
Shaper: https://youtu.be/qIu7xNq7v8w;
Hall of grandmasters: https://youtu.be/7wGpkY1XOaM.
Then we got some upgrades:
Breachlords: https://youtu.be/8Wa-lCdnRug;
Guardians: https://youtu.be/VXZzIFhf5Vo

Kill all for a jewel socket or help Kraityn for extra ms, dodge and cast speed. Up to you.

Goldrim, wanderlust, 2xlifesprig, level 1/2(level 10)/3(level 45) (whichever one you can afford) empower and a +1 tabula make leveling trivial.
Head to shadow's area of skill tree first.
Run purity of elements to cap your resistances if needed, elsewise run enfeeble with blasphemy.
Get permanent fortify after cruel labyrinth. At this point you should be pretty hard to kill.

2 exalted orbs and possibly multiple deafening essences of woe required!

Buy an ilvl 50+ 6l bow once you can afford it. The smaller dexterity requirement the easier it will be to get 4 offcolor. I prefer this one specific base:

Use alterations and augmentations to roll 32% reduced requirements to make coloring easier.
Once you have bow with the right colors you scour it and use a deafening essence of woe on it. You want to get exactly 2 suffixes and no more than 1 (if you don't want to waste currency you can stay with 2 then you won't be able to craft damage over time leo's mod) prefix (http://poeaffix.net/2h-bow.html, also, spell damage is a prefix). As far as I know you can't get less than 4 mods on an item when using essences. Thanks to harbingers we can use annulment orb to hope we get rid of the unnecessary ones (you will probably need multiple attempts). If you remove spell damage or get less than 2 suffixes you must start over.
All prefixes are worthless for this build. On the other hand, there are some useful suffixes like attack speed and resistances to look for.
Once you have a bow with the right amount of suffixes and prefixes you craft "Cannot roll attack mods" (level 8 Catarina required) and slam the bow with an exalted orb to get guaranteed +1 to level of socketed gems.
Remove crafted mods (Tora 7). You can use some divine orbs to get maximum spell damage (104%). Once you're statisfied with the result craft "increased DoT damage" mod (Leo level 3). Keep removing crafted mods and crafting "increased DoT damage" till you get 30% or as close as you can get.

P.S. If anyone has problems or questions about crafting I can guide you through crafting process and even do the master crafting for FREE. Tips are welcome, but unnecessary. PM me @thelastchaosbender.