This build is centered around kiting your targets because of slow and increased damage to slowed targets. As long as you keep Marked for death up, you will have a generally very good hatred management. Shadow power and vengenance give you the health regen you need to survive or if you get caught in a corner they can help to bail you out.
The only problem I have with it is when the elemental arrow splits off, it might hit a treasure goblin that isn't on the screen and starts its timer far too early.