Barbarian Arsenal System

The Arsenal System is the unique Barbarian class mechanic in Diablo 4. It allows them to assign a specific equipped weapon for every attack skill and grants additional bonuses. There is also a Technique Slot that unlocks via a questline at Level 15 which was not obtainable in the Press Release version. Let's learn everything we currently know about the Arsenal System so all future Barb players are ready for launch day!

All information in this article is from the Press Preview Access of Diablo 4. The content presented here is subject to change, and will be updated as we learn more.

Unlocking the Arsenal System

The Arsenal System is automatically available when you reach Level 5. Opening the Expertise tab (Shift + C) shows all the different weapon types and their bonuses when using them. They all start at Level 1, can be leveled up to 10 through battle, and scale linearly. Here is the complete list of all powers and bonuses:

ExpertiseRank 10 PowerRank 10 Additional Bonus
1H Axe{+5.0%} increased Critical Strike Chance against injured enemies. Double this amount when using two Axes.Lucky Hit: Critical Strikes have up to a {55%} chance to grant {+0.6%} increased Attack Speed for {2} seconds. Double the Attack Speed bonus when using two Axes.
1H Mace{x10%} increased damage to Stunned enemies. Double this amount when using two Maces.Lucky Hit: Up to a {10%} chance to gain Berserking for {1.50} seconds when you hit a Stunned enemy. Double this chance when using two Maces.
1H SwordLucky Hit: Up to a {10%} chance to gain {5} Fury when hitting a Crowd Controlled enemy. Double this chance when using two Swords.Killing a Crowd Controlled enemy grants {+15%} increased Attack Speed for {3} seconds. Double this amount for kills with two Swords.
2H Axe{x15.0%} increased damage to Vulnerable enemies.{+10%} increased Critical Strike Chance against Vulnerable enemies.
Polearm{x10%} increased Lucky Hit Chance.You deal {+10%} increased damage while Healthy.
2H Sword{+20%} of direct damage you deal is inflicted as Bleeding damage over 5 seconds.You deal {x30%} increased Bleeding damage for {5} seconds after killing an enemy.
2H MaceLucky Hit: Up to a {10%} chance to gain {2} Fury when hitting an enemy. Double the mount of Fury gained while Berserking.You deal {x15%} increased Critical Strike Damage to Stunned and Vulnerable enemies while Berserking.

The Technique Slot

At Level 15 you receive a quest to unlock the Technique Slot, but since the Dry Steppes zone was not available in the Press Release Version, we cannot comment on this further. We will update this guide with how to unlock and use it effectively once this information is available to the public.


How to Use the Arsenal System

The first order of business is to assign the weapon for your main damaging ability. Do this by opening the skills menu (S), hovering over the skill you're using, and pressing down on the middle mouse button. Usually it is more important to pick a weapon based on it's DPS / Attack Speed / Lucky Hit Chance, than the preferred Weapon Bonus you'd receive from the Arsenal System. In simple terms: consider the Arsenal System "a nice bonus" rather than something you're making conscious decisions on. Once the weapons are assigned properly, you receive the corresponding Weapon Bonus. Notice that if you primarily use one skill to DPS, all other equipped weapons become stat sticks to boost your main weapons power!

Note: Diablo 4 automatically tries to switch your assigned weapons when it thinks you've acquired a better one. During leveling, for the most part, it does a good job of picking the right one. Pay attention to this as you're playing though!

Leveling the Arsenal System

Leveling up the Arsenal System is a natural process. As you pick up new weapons and battle monsters, the corresponding weapons you're using gain experience. Getting up to Level 10 with all weapons is not very difficult, and can easily be done by even casual players. A few things to note:

  • Weapons gain XP on hit, not on kill.
  • Weapons do NOT gain XP in PvP.

Video Guide


  • The Arsenal System is the Barbarian's weapons specialization in Diablo 4 that unlocks at Level 5.
  • All weapon powers scale linearly, and they max out at Rank 10 with an additional power.
  • The Technique Slot unlocks at Level 15 via a quest chain in the Dry Steppes, but we were not able to unlock it yet. More details on this coming soon!
  • Assign your preferred Weapon to your skills. Diablo 4 will automatically try to pick them for you as you level up.
  • Level up your weapon powers by hitting enemies in battle (does not level up in PvP).
  • If you mainly use 1 damaging skill, all other weapon slots become stat sticks to boost your primary weapon.
  • Become the General Grievous of Diablo 4 by welding FOUR WEAPONS!

Check out our Barbarian Class Overview to learn all the details about Skills, Items, Legendaries and more.
Also take a look at the Rogues Specialization System and the Sorcerer's Enchantment Slots to learn about other classes.


Written by Raxxanterax.
Reviewed by Rob.


Dec 8th 2022
Article Created from the Press Release Version of Diablo 4.