Diablo has some really good new talents. Most specifically, level 16 talent Dominion: Lowers cooldown of Overpower by 4 seconds, Overpower resets cooldown of Shadow Charge.
This means you can actually Q into a target, E him over your shoulder, and Q him back to your initial position, hopefully so he's isolated and gibbed by your teammates. Combine that with level 4 talent From the Shadows, which increases the Shadow Charge range by 33%, and you've got yourself a powerful combo. And the resistant on his Q makes it easier for him to go in like that.
Now if only they made his trait optional when he dies at 100 souls.