I just made a make shift Cold Tempest Rush Flurry build on the PTR.
Items:
Fist of Az and Azurewrath. Cold damage and increased damage to EP.
Crimson Belt and Boots. For CDR. Boots have Tempest Rush affix on them.
Asheara Pants and Gloves. For toughness.
Aughilds Shoulders and Chest. For toughness and some damage.
Cold Andariels for damage (for now, don't use it for this build you need a socketed helm for CDR) I recommend Law of Seph for the Blinding Flash free Spirit.
Cold Amulet. Cold Reapers Wraps for Spirit regen.
RROG and Cold SOJ. Unity if solo which is what I am currently running.
Skills:
Epiphany - For Spirit regen and toughness as this build is really squishy
Sweeping Wind - Cold or Holy (to freeze enemies in place while you do your Tempest Rush or Holy for more Spirit regen) OR Blinding Flash with Law of Seph
I recommend Law of Seph + Blinding Flash but if you don't have that then you can use Sweeping Wind
Air Ally - For Spirit Regen
Mantra of Healing - Circular Breathing : For Spirit regen
Exploding Palm - Strong Spirit (if you have the Spirit regen to keep TR going then I HIGHLY RECOMMEND Impending Doom as it synergizes well with the Cold damage build. The damage is pretty nuts when it comes to clearly out trash mobs)
Tempest Rush - Flurry. The bread and butter of this build.
Air Ally - For Spirit regen.
Passives - Transcendence, Beacon of Ytar, Exalted Soul, Chant of Resonance
Impressions on this.
Surprisingly good at clearing out trash mobs even at T6. Tag a few mobs with EP then just start doing Tempest Rush. EP can normally clear out a pack of mobs pretty easily along with the additional damage from Tempest Rush.
The damage from the Tempest Rush is pretty insane when you release it however there are some caveats to this:
*The AOE of the explosion is very small and disappointingly so. You want to position yourself so that you release the explosion on top of a monster who has an EP tagged so that you can set up a change reaction of explosions.
*You can be interrupted out of your TR channeling rather easily. Jailer is one that pretty much destroys this build if you don't have Serenity.
The main problem with this build is that it struggles in tough elite packs. It's a very squishy build, you need to have your toughness up to snuff when you are going into crowds and building up your TR charges.
With further optimization this build can be quite insane.