I only have Rhazin fully booked.  I've got a whole bunch of Red Books in storage, but I'm always gunshy about actually using them.

Deacon is also fully booked.

What is a "whole bunch"?  Definitely book Brogni cooldown for block buffs, Brago much better booked, not sure if Narma is "good enough" to book.  vogoth doesnt need books

Damage is really from a few factors:

1) Speed - the more you hit - the more you'll do (ie damage per second needs to be high)

2) Debuffs - Hp Burn, Poisons (stacked), def down, weaken

3) More turns - meaning Boss hitting less (Attack down), healing (leech, lifesteal, etc), shields, higher def

I posted this in another thread, but this is my comp I use for UNM (2key) and NM(1key) CB 

I have an unkillable team, but it's only speed tuned for UNM, which with the 50 turn thing I need to 2key anyways...so this is just easier for me..no swapping or switching.

i

Here's what I run, WhyPlay:

i

i

But I agree with your advice on how you move up in NM and UNM until you eventually 1 key UNM.

Can you build my team? Someone else took my unm damage from 20 mil to this. 

i

Oh wait that was you.