I've got a bit of a Fast attack speed vairent I've been using for a while, Still do 4.5-5.5 mil per meteor with my gear, and have 1.88 APS, was excited to see this type of build is being run at higher Torment, (I run T3 fairly easier with my current set up)
Prodigy instead of Astral presence, Due to having a very high attack speed, I can fill in spots where I am out of power with missile and gain back very fast, to the point where 2-3 missles is enough to fuel another 2-4 meteors depending on crits.
Blackhole-blazer instead of Sparkflint familer, This is more of a convenience thing, But because the blazer explodes for 10mil, usually I find being able to suck mobs into the center of the swarm and hold them there very useful and provides bit of CC to an otherwise CCless build.
Last is an honorable mention variant, Using absorb shields from Dominance, Galvanizing ward and Magic weapon- Deflection, (You don't need all three just enough to keep your absorb shield up and active a majority of the time, Combined with the helm, Pride's Fall you can easily get 70% and higher cost reduction on fire skills, Basically letting you spam your heart out nearly endlessly. i find this works better in lower torment when I don't need the extra damage to 1-2 shot most things and I don't find the damage high or busty enough to make illusionist helpful.
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Build I'm using is here: http://us.battle.net/d3/en/calculator/wizard#aPQOSN!cedZ!cYZZZY
My Armory: http://us.battle.net/d3/en/profile/Gaddisin-1979/hero/38503251
Notable differences.
Prodigy instead of Astral presence, Due to having a very high attack speed, I can fill in spots where I am out of power with missile and gain back very fast, to the point where 2-3 missles is enough to fuel another 2-4 meteors depending on crits.
Blackhole-blazer instead of Sparkflint familer, This is more of a convenience thing, But because the blazer explodes for 10mil, usually I find being able to suck mobs into the center of the swarm and hold them there very useful and provides bit of CC to an otherwise CCless build.
Last is an honorable mention variant, Using absorb shields from Dominance, Galvanizing ward and Magic weapon- Deflection, (You don't need all three just enough to keep your absorb shield up and active a majority of the time, Combined with the helm, Pride's Fall you can easily get 70% and higher cost reduction on fire skills, Basically letting you spam your heart out nearly endlessly. i find this works better in lower torment when I don't need the extra damage to 1-2 shot most things and I don't find the damage high or busty enough to make illusionist helpful.