Barbarian skills can be assigned to each from Devon's blog

Barbarian skills can be assigned to each item in the Barbarian's Arsenal, which leads to a wide range of customizable options and approaches to battle. Because Barbarians carry four weapons at a time Diablo 4 Boosting, they get more item affixes to give them boosts than other classes. There are several skills that specifically require a bludgeoning weapon, such as Maces, or slashing weapon, such as Swords. Some skills may require dual wielding or two-handed weapons. and using those skills will immediately swap the Arsenal to the most appropriate choices. This feature is intended to make the gameplay faster, less confusing, and overall more enjoyable for new and seasoned players.

The Arsenal system was added to reflect the way past iterations of the Barbarian were equipped with heavy weaponry. The class's implied weapon mastery will now be more effectively implemented in gameplay.

The Barbarian's Skills 

In addition to having the highest health and strength in Diablo, most Barbarian skills strictly deal physical damage. Red or Orange skills are the Barbarian's two distinct specializations. Warlord (Red) skills and talents generally aim for defense, party bonuses, tactical damage, bleeding, opportunity strikes, and Crowd Control. Berserker (Orange) skills go for reckless offense, maximum damage output, self-buffs, and speed. Each point of Strength increases the damage of the Barbarian’s skills, while Willpower improves Fury generation and Dexterity grants critical chance.

The skill tree is a welcomed departure from Diablo 3’s focus on specific skill builds. The Barbarian juggernaut gains skills throughout its development that fall into six main skill categories. Basic, Fury buy Diablo IV Boosting, Defensive, Brawling, Weapon Mastery, and Ultimate skills will each contain four to five abilities that will strengthen the Barbarian enough to make it to the end of his campaign in the world of Diablo.