The Diablo 4 Early Access beta provided some fans with a glimpse of the eagerly anticipated sequel, but the Open beta of the game is the one that the vast majority of players are looking forward to the most. After all, not only will those who participate in the beta have the opportunity to test out the game (regardless of whether they have pre-ordered the retail version or not), but we will also be able to test out each of Diablo 4's five starting classes for the first time. 

Before we get into some of the best early builds for each of those classes, there are a few things you should keep in mind, including the following:
1. As was the case previously, these builds are based on what we currently know about the game as a result of our participation in the Early Access beta, our exposure to earlier previews, and the information that was datamined. This article will be updated to reflect the latest information regarding the upcoming retail release of the game.

2. This article focuses primarily on the most effective solo builds because that is the only way that some players will be able to test out the beta until some of the restrictions are lifted. When playing in a cooperative mode, it is essential that you always synergize with your teammates. If they deal a significant amount of damage to a single target, you should probably bring more area of effect weapons into the party. If you can convert one of your flexible skill slots into an ability that provides a party buff, it might be a good idea to take advantage of that ability.

3. This guide will primarily concentrate on Skills and Stats rather than recommended gear and other high-level upgrades that are not currently available. The reason for this is that the beta has a limited number of features, so this focus is necessary. This article will be updated in the future to include a significant amount of new information concerning those facets of the game.

4. Last but not least, due to the extensive nature of the skill trees in Diablo 4, it is not possible to simply provide a screenshot of the completed build. Instead, we will be sharing links to a build calculator with you, which will demonstrate the Level 25 versions of each build. In the not-too-distant future, we will hopefully have access to an increased number of resources, which will make it much simpler to communicate all of this data. Now that we've gotten that out of the way, let's take a look at some of the most effective builds for each class that you can find in the Diablo 4 open beta.

Diablo 4 Beta – Best BarbarianBuild: 

Tank of Thorns Barbarian Build Full Skill Tree Primary Skills: Flay, Rend, Challenging Shout, Death Blow, and Call of the Ancients Build: Tank of Thorns Barbarian Build Full Skill Tree

If you have a good Flay and Whirlwind "Bleed" build, you can actually get through a lot of content as the Barbarian. However, I've decided to go with a slightly modified version of that concept that puts more of an emphasis on the powerful Thorns abilities that the Barbarian has.

Thorns are defensive tools that inflict damage on enemies automatically whenever they make contact with you. This build is intended to not only maximize the amount of time that your Thorns are active, but also the amount of damage they deal and your ability to defend yourself. Although it is a tank build, this character is not as passive as you might expect from its name.

Flay is the obvious choice for this build's basic attack, as its Combat Flay upgrade enables us to easily generate your first Thorns, and Flay is a very versatile attack. Because Rend's Bleed synergy with Flay is so strong, we've decided to make it our Core ability. Those Bleeds are going to come in very handy during boss fights and encounters with Elites.

This build starts to get really interesting when it gets to the Defensive tree. In addition to increasing the number of Thorns we have available to us based on our maximum life, the upgraded version of Outburst also makes our Thorns deal additional bleed damage. In the meantime, the improved version of Challenging Shout provides us with an increase in life, a reduction in the damage we take, and the generation of an additional number of thorns that is equal to half of our maximum life. You are going to want to make sure that you have all of these upgrades under your belt before moving on, as they are the foundation of this build.

We are going to bypass the Brawling tree for the time being and go straight to the Weapon Mastery section in order to acquire Death Blow and Enhanced Death Blow as soon as possible. These are the best allies the Barbarian can have in battles against the game's more powerful bosses, and they're also pretty useful against the hordes of weakened foes that we'll be facing later on.

Last but not least, we're going to use the Call of the Ancients Ultimate, which is essentially a smart bomb that can clear the screen. It is one of the best reasons to play as a Barbarian, and despite the fact that it does not have any obvious synergies, it is extremely powerful in this situation.

Be aware, however, that in comparison to other beta builds, this one may be somewhat more dependent on the gear you choose to use. You are looking for items that will increase your maximum health, provide additional defensive capabilities, and, ideally, synergize with the damage that your Thorn attacks deal. This build is usable even if you do not have the best equipment, but it reaches its full potential when you do.