What Classes DON'T Use Overpower/Barrier?

Are there any? Or is Barrier just so good every build has to optimize for it?

The only reason I’m in T4 is my perma soulrift build on my necro. It gives oodles of Barrier.

I tried the overpower Unmaker build but my gear was lacking.

I got to T4 with my SB without barrier. But since I’m comfortable in T4 and need to push farther in the Pits, I had to use the rune Barrier.

rogue do not need ocerpower or barrier.