4 Monks is prolly the fastest combo I've tried for low difficulty and with enough damage, even T1-3. Try this build:
http://us.battle.net/d3/en/calculator/m ... hVS!cZZcZcIt works with 2 handed weapons and 1 handed weapons if you have enough CDR to have your Epiphany ready before you run out of spirit. Get at least 40% CDR so it is available in less than 40 secs. Setup Epiphany in roundrobin and group your monks in 2 groups so there's 2 monks in your party doing damage with Tempest Rush + Epiphany 95% of the time. If Epiphany loads in 35 secs, (lasts 15 secs) in 20 secs you will have it again. In those 20 secs, you have the second group of 2 monks with Epiphany up, so basically your party doesn't have Epiphany only for 5 secs which is nothing.
Also round robin Breath of Heaven Zephyr for permanent 30% movement speed. Have 1 monk with Mantra of Conviction Annihilation for 30% movement speed after killing something which is most of the time cause of Epiphany. Seven Sided Strike instantly kills packs and when u dont have it available, just Tempest Rush with Epiphany which is good enough to kill anything really fast. You can either use the rune with the highest damage or the one that has the lowest cooldown to "spam" it.
Move down in difficulty until you can kill white mobs with Tempest Rush + Epiphany on a single pass. You will be running at 110% movement speed most of the time and you can clear a Rift faster than any class. I dunno how much it takes me to do a Normal Act 1 Bounty run but its extremely fast compared to other combos I've tried.
Important items:
http://eu.battle.net/d3/en/item/cindercoathttp://eu.battle.net/d3/en/item/magefisthttp://us.battle.net/d3/en/item/stone-of-jordanhttp://us.battle.net/d3/en/item/hexing-pants-of-mr-yanStack as much damage to Fire Skills as you can and dexterity. 50% crit chance and the least amount of attack speed you can. You can add attack speed as long as you have high enough cooldown reduction to have Epiphany right before you run out of spirit. Done correctly, u can Tempest Rush permanently and have 2 monks hitting EVERYTHING, even breakable items in the whole screen. If you go with 1 handers, you might need 1 fist weapon with Spirit Regen and/or a Spirit Stone also with spirit regen, or just play with your skills to get enough spirit regen. SoJ with spirit regen is prolly BiS for this build but not sure if those drop anymore. I have one lvl60 that dropped right before RoS that has 5 primary stats including Fire damage, dex, crit chance, damage to elites and spirit regen.
Most ppl that talk about Tempest Rush build with Epiphany will recommend you to have enough spirit regen so it matches or its higher than your attacks per second, reason why they always talk about 2H weapons for Tempest Rush. U don't need that. U need to have enough spirit regen to sustain Tempest Rush for those 20+ secs where u dont have Epiphany. Once u have it, u will be back at 100% spirit in a few secs because of the huge regen u get from it.
But if u don't wanna invest time doing the math for spirit regen, just go with 2 handers like:
http://us.battle.net/d3/en/item/the-flow-of-eternityhttp://us.battle.net/d3/en/item/maximushttp://us.battle.net/d3/en/item/warstaf ... eral-quangThe Warstaff of General Quang is great cause you can have 1 monk with Tempest Rush Bluster and StrongArm Bracers for additional 30% party damage. And since Bluster is Fire, if u have a Cindercoat, Tempest Rush channel will cost 30% less spirit.
Sets that will help u farm higher Torments:
Aughild's
Captain Crimson's
Born's
Blackthorne's
Sunwuko's
Inna's
Inna's 4 pieces is overrated IMO and not necessary at all. The 3 piece effect is more than enough. You can have 3 different sets with Ring of Grandeur, sometimes even 4 sets at the same time. 3 pieces of Inna's to get the 4 set effect will limit you to most likely 2 sets only. Sunwuko's 2 set effect is nice if you go with 2 handers but wouldn't suggest the 4 piece set because the effect sucks for Tempest Rush builds since you don't tank and the decoy will blow while u are off screen and hit nothing. I rather go with Aughild's, Born's and Captain's sets which don't need u to be extremely lucky. U can farm and craft those sets very easy. Devastator can be a good weapon too.
Going higher in Torment will most likely require 1 handed weapons. Thunderfury, Fulminator, Burning Axe of Sankis, Devastator, Odyn Son, Sun Keeper, etc. can scale your damage by a LOT, specially the ones that proc AoE effects. Doesn't matter if they proc lightning. As long as they proc a lot and do AoE damage while u rush, its fine.