Fortunately, there is at least one build out there which helps ease the suffering somewhat.

It is not intended to help you push through endgame content.

That led me to Upheaval.

Diablo 4 Barbarian leveling

Mind you, that effect can stack up to six times.

It turns an already pretty useful ability into an absolute monster.

Upheaval reaches something closer to its full potential much sooner than that.

Diablo 4 Season 2: Best Barbarian Leveling Build

How do you build around Upheaval, though?

Well, you have some options.

I think that War Cry and Rallying Cry are musts in most Barbarian leveling builds, including this one.

That also means youre spending nine points on all of the accompanying Shout Passives.

Speaking of Ground Stomp, it proved to be a surprisingly effective part of this strategy.

Its a remarkably simple and consistent way to deal with large packs of enemies while leveling.

A lack of obviously better options, mostly, though dont sleep on the Bersker package while leveling.

Its relatively easy to trigger the effect between our shouts, Ultimate, and Lunging Strike.

Unfortunately, this build does suffer during boss fights.

If you want more single-target damage as a Barbarian, you should focus on Death Blow and Bleed builds.

AoE damage is your leveling fuel, and this build offers quite a lot of that.

Finally, Legendary Aspects, Gear, and Vampiric Powers matter quite a lot for leveling Barbarians.

Just take a stab at keep yourself as fully geared as possible as often as possible.