Here's Amiar with his Crusader, doing some insane runs in Diablo III: Reaper of Souls. He manages to clear endgame content in 13 minutes on the hardest difficulty, while using only one skill: Blessed Shield.
If you check the Crusader's profile, you can see that both the weapon and the shield play a big role in this build as they buff this one particular skill to the top. The Crusader is a ranged class after all...
Knowing how hawk-eyed Blizzard is when it comes to nerfs, this might be the next on the list.
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