
TLDR: Make big groups of mobs and blast them with massive AOE damage with
Death Blow while bringing the best utility in the game for your team.
Overall, your goal with this build is to get large groups of enemies on top of Elites so that you can spam
Death Blow and constantly reset its cooldown. To achieve this you will use
Rallying Cry to quickly move and generate loads of Fury. You then use that Fury on
Whirlwind, which will allow you to move through mobs and also drag them with you.
You want to create a situation where every time
Death Blow is off cooldown you can do a lot of damage with it, and while it's on cooldown you want to be making these groups.
Your
Whirlwind also serves the purpose of spending Fury to build up your
Aspect of Encroaching Wrath, which makes your
Death Blow do bonus damage after spending 100 Fury. Make sure that you abuse this Aspect as much as you can, as your ability to do damage is heavily limited by
Death Blow’s Cooldown.
Defensively the main things you need to focus on are keeping up
Challenging Shout and
Frenzy. In this build, you should aim to have enough CDR to keep 100% uptime on
Challenging Shout, which is just an absurd tankiness buff. I believe that this build, like most Barbarian builds, will probably be one of the tankiest builds in the game.
It’s important to keep track of a few buffs with this build, and there is a bit of maintenance you have to do. You need to make sure to keep up
Frenzy, all of your Shouts, and
Walking Arsenal.
Walking Arsenal is particularly important to keep up as it gives a massive damage multiplier, and you want to make sure that it's always at 3 stacks before you
Death Blow.
Remember that this build is all about getting the most value possible out of each
Death Blow usage. When you’re clearing with this setup, always put thought into where you are going to spend each
Death Blow and do what you can to optimize its value.