I just sent the voidwalker in and cast a few chaos bolts. My warlock is destro so I summon infernal so my chaos bolts recharge faster. I don’t know how the armory works so I cant see your gear, but its good to be on the close side to 500 gs (480 and up)
Demonology you try to talent for the Doomguard to reset his cool down
My advice to somebody that hasn’t started the scenario, grind 71 and buy 515 gear from ah