FoW builds?

Just wondering which ele build is most optimal for FoW.
Echo nuker, renewal nuker...?

Renewal/Echo nukers are no less of a waste of space in FoW as they are everwhere else (read: they fail, hard)

Tbh, FoW is really quite easy...
I'd just run the same Mind Blast/Rodgort's spam ele I do everywhere else, except I'd be more prone to take GoS/MS to deal with multiple-monk mobs; and Ward Against Melee for Berserkers/Abyssals. Everything else is a cakewalk.

AP nuker works in NM, never done HM there yet but I'd do a Mind Blaster for that.

there's always SF too

whats a good mind blaster build?

It can be stripped down to....
[skill]mind blast[/skill][skill]rodgort's invocation[/skill][skill]fire attunement[/skill][skill]death pact signet[/skill]

... which gives you damage and unlimited energy, as well as the best res in the game.
The other 4 slots are yours to play with, you can take defensive Wards, useful PvE skills, a couple of other Fire DDs, Blinding Flash, or support stuff from /Mo - Convert Hexes, Draw Conditions, Aegis... stuff.
As long as you don't bring retarded crap like Flare or Firestorm, you're dandy.

For FoW specifically, I'd likely go summat like...
[skill]mind blast[/skill][skill]rodgort's invocation[/skill][skill]fireball[/skill][skill]glyph of sacrifice[/skill]
[skill]meteor shower[/skill][skill]ward against melee[/skill][skill]fire attunement[/skill][skill]death pact signet[/skill]

alex has it. those four can be the base for most builds your ele uses. I personally love using malestorm to cause some havoc along with deep freeze.

you could "try" playing a tank [skill]Obsidian Flesh[/skill] ( thats just a yoke )

so [skill]arcane echo[/skill] [skill]Savannah Heat[/skill] and [skill]deep freeze[/skill] can be good , might even trow in a [skill]maelstrom[/skill]