This is the highest end game dps raiding build you can make. The problem is - you need to have a good set of gear for this to actually outdamage the affliction build. Usually 200+ hit, 1k+ dmg and 25-30% crit will be sufficient to switch to this build.
The idea is, you sacrifice your pet to gain +dmg and begin nuking monsters like you've never nuked before. If you are usually the one providing the imp or seducing in raids then you might want to stick with affliction as it provides more utility at the same time as allowing pets. Otherwise enjoy your insane dps.
