Bartholomew's Endurance Discharge Build (Discharge, EE, Lightning warp)

http://www.pathofexile.com/passive-skill-tree/AAAAAgUBBVuLjOFz7SBG113G3fNgbZ_fPAXvfIM4FE2iAASz8B-Bb548TdiMdjrY7DgaOKeEkFUpT4KbwBpmnvrSHRSYrS3SWfOsqift890ZLtlh1I-53fIv7w5XDZHO0iGezacwFCBQRwHnNuhkoxpVYSES4YTvdO1672BLBS277edSVElfP_ZIjM9QUFhjxtiPRtDQz2VVxpuhZ72nCLiTDH0Qf8aeQKAhYHTxnrnr7ij6lSBb9Dbp42okqhmF

The main skill used in this build is Discharge.

Main skill: Discharge + Concentrated effect + Increased AOE + Chance to ignite/Fire Penetration/Iron Will + (elemental proliferation for 5link).

Note: My personal preference for the 4th skill is iron will, as this build takes a large number of strength passives, which provides quite a large benefit to your discharge damage.
Additionally, since you are not casting discharge repeatedly, the %slower cast time means nothing.

Enduring Cry x 2 (i've played around with trying to gather frenzy charges, but it is way too inefficient/dangerous for the little gain that you get from 3 frenzy charges.
Blood rage is an option if you're swimming in chaos resist, as it enables fast frenzy charge gathering.


Now to apply the elemental equilibrium debuff there are 2 methods:

1. The safe (boring) way - spell totem + Arc + elemental proliferation + (faster casting) to spread the equilibrium/shock stacks

2. The ULTIMATE DIVE BOMBER MAN MODE - Lightning warp + Increased AOE

Personally I use both, depending on the situation, but you can use whatever floats your boat.

Single Target:
Fireball + Chance to ignite + (whatever you feel like, i like faster projectiles and fire penetration or increased crit, since they keep the mana cost low).

For single target, be sure to keep Arc totem up to keep reapplying the equilibrium for your fireballs.


Curses: You have a few choices here:
1. Flammability: Directly Increases fire damage from discharge, and increases ignite chance from discharge as well as fireball.

2. Enfeeble: Pretty useful since you need to be up close and personal with mobs to get the full effect.

3. Warlord's Mark: This is a bit hit and miss, it can provide sustainability in your discharges when farming easy content, but is unreliable and gives no other benefit apart from recharging your flasks a bit faster. The fact that you have 2x enduring cry, and the cooldown is so small, i don't see the point in this.

Auras: There is little room for auras in this build, as there is not much int passives taken, hence a low mana pool. However clarity is always a good choice, and there is also the possibility of running auras with blood magic if you choose.

Armours:
Any armour with max life/resist

Rings/Neck Pieces:
Max life/resists
UNIQUE - Kaom's Sign, provides 1 additional max endurance charge - This can provide a boost in your dps, at the cost of 1 ring slot. It's really your choice, but if you want to insta explode things, this ring's for you.

Weapons/shields:
Any weapon with + spell dmg + fire dmg + spell/global crit chance
Any shield that fits your needs.

UNIQUE - Searing touch - While not mandatory for this build, it provides a substantial boost in dps, since endurance charges cause discharge to explode with fire dmg. Additionally, it provides +2 levels to fire gems. This is important, as discharge is classed as lightning, cold AND fire, which also increases discharge's damage substantially if socketed with supporting gems in the staff.
Also note that chance to ignite support gems are valued more if you have this, due to the increased burning damage.

There is no need for any special flasks at all.
My setup is 1 HP pot, 2 granite, 1 hybrid, and 1 quicksilver, but it's really up to you.