If playing solo, itâ€™s the same as any other battle in that you need enough DPS to whittle down the bosses and enough survivability to make it through the rough patches. I mainly play melee classes, but I imagine a Demon Hunterâ€™s biggest challenge would be steering clear of the adds while still DPSing the bosses. If playing in a group, itâ€™s best to have someone focus on adds while the others deal with the bosses.Â However in either case I highly recommend that you focus on the bosses one at a time.
Kill the Skeleton King first. Keeping the two apart is critical.Â You do not want to be caught between the two bosses at close range (and thus subject to the full might of their hordes as well).Â It seems to work best if one person keeps Maghda busy and separated, while the others focus on Leoric and the adds.Â The sooner the Skeleton King is down, the better, because he spawns adds frequently, whereas Maghdaâ€™s appear to be tied to the quarter marks on her health bar.Â Therefore, another good reason to leave her alone until Leoric dies is to keep her adds out of the game until you can focus on her and her adds alone.Â Also, Maghdaâ€™s arcane sentry is not something you want to spawn anywhere near you when youâ€™re already getting up close and personal with Leoric.
Once Leoric is gone, Maghda can essentially be trapped in a corner and beaten to death, provided you can live through or avoid her arcane sentries.Â She will shield herself and spawn adds everyÂ time a quarter of her health is lost.Â Knowing this, you can predict when the adds will appear and give yourself s little space.