I was helping a friend in ZA getting his bear mount to his alt, went demo for fun, havent played that spec in a awhile.
My DPS curve on bosses was ridiculous, 30k+ dps with Doomguard, 20k+ without, a 10min CD giving a exta ~10k is just plain retarded imo, I gladly do 25k every fight than 30k only every 10mins.
Demon's Doomguard damage needs to be looked at. Not saying nerf the spec just the CD itself needs to be rebalanced to a shorter CD spell, shorter Doomguard duration but same or more up-time over a long fight, but on a reasonable availability.