So you made it to the last Act of Nightmare. Way to go! You now have a pretty good idea of the level of difficulty that you are getting into, since Act 3 and Act 4 mobs are the same level. This is the shortest Act, and as such I have been able to complete the act in under an hour. As always, refer back to Nightmare Act 1 guide if any difficult mobs come up. This Act can drop some of the sickest loot that you have seen so far, so be on the lookout for blues and yellows (or even oranges!) that you can pick up. The following guide will go into the specifics of the skills, runes, and gear that you will want to use to allow you to kill Diablo in this difficulty as easy as it was in Normal.
Diablo: soon to be history
Check out this Exclusive D3SG Barbarian Act 4 Guide. Where we teach you exactly what you need to know to DOMINATE Act 4 in less than 1 hour.