I'll stay on topic here and post in the other thread about the WD's.

Gear/Skills: http://ptr.d3planner.com/557051093

I'm still testing the passives so Unstable Anomaly and Prodigy aren't set in stone. In fact, for GR Key farming I highly suggest Dominance as it's always at full stacks and helps me stay alive long enough where lack of DPS is the only thing that ends the session and not my deaths.

Currently I'm running only one piece of gear with CDR (shoulders) for 42.02%. This allows 1.9 sec rotations on Black Hole and 1.2 sec rotations on Frost Nova (may be able to get those times down a bit but my PTR connection runs at 150ms versus 30ms on Live). Well placed Black Hole's grab and hold everything outside of the RG, while the Frost Nova grabs and holds anything that jumps over the Black Hole. Frost Nova at this amount of CDR allows the RG's to move for about a quarter of a sec every second and prevents 95% of their skills from firing. Black Hole - Event Horizon is also awesome for pulling in and swallowing all non-lob style range attacks and allowing you to remove most elite/RG ground effects.

The "Reflect" affix is really the only thing that will make your runs difficult at higher levels, since you usually cant survive more than a second of triggering that damage. I wish I had more movement speed or room for Teleport -Calamity so I can just move right on top of the elite pack and use Frost Nova to lock them down and Black Hole to soak up any ranged attacks until I can start applying damage. For me, that really is the only drawback to this build, movement speed to initiate without taking to much damage before you're in position.

I really enjoy running this build, especially being able to produce Keys right at or above the GR's I can efficiently clear. Going to test Arcane Dynamo among some other offensive passives for use in Trials tonight/tomorrow. Dominance seems to be bolstering my defense quite nicely so I should have some room to ramp up the damage, I hope.