Every class in Diablo 4 has a unique aspect, and for the Barbarian, that is the Arsenal system. If you are wondering how the Diablo 4 Arsenal system works, what weapon expertise you can level, how to unlock it, and much more, we've got you covered.
This guide outlines everything we know about the Barbarian's Arsenal system in Diablo 4 so far, so let Bul-Kathos guide our hands as we dive deep into this unique aspect of everyone's favorite melee class.
Update on 24 March 2023: We've updated this article with the latest information about the Barbarian's unique Arsenal system in Diablo 4. Check out our complete Barbarian Class Guide for the Diablo 4 Open Beta.
Learn about the Diablo 4 Open Beta update and the issues/troubles players can expect when it kicks off on 24 March at 09:00 PST.
Please note: The Diablo 4 Barbarian Arsenal System information in this article is from early beta tests and can change at launch. We will consistently update this article to bring you the latest possible information.
How To Unlock Barbarian's Arsenal System in Diablo 4

It is very easy to unlock the Arsenal system for Barbarians in Diablo 4. You simply need to level up your character to level 5. At this point, the Arsenal system will be unlocked, and you can start leveling it up.
How To Level Diablo 4 Barbarian Arsenal System
It is a very simple process to level up your Arsenal system to gain more weapon expertise, a Rank 10 bonus, and some great stats.
The only thing you need to do is play Diablo 4. Throughout your leveling process, you will pick up new, better weapons. When you hit a monster with a weapon, that weapon type, for example, a 2-handed axe, will gain Arsenal XP automatically. It is relatively easy and painless to get all weapon types to Rank 10 while going through Diablo 4's huge campaign for the first time.
Our only note here is that currently, weapons do not get any Arsenal XP during PvP.
All D4 Barbarian Arsenal System Weapon Expertise & Bonuses

As per the amazing Diablo 4 resource, Maxroll.gg, to which full credit goes for this info, you can view all the Weapon Expertise and what type of stat increases they provide Barbarians via the Arsenal system in Diablo 4, alongside Rank 10 bonuses.
Weapon Expertise | Power/Stat Increase | Rank 10 Bonus Stats |
1-Handed Sword | Lucky 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. |
1-Handed 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. |
1-Handed 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. |
Polearm | {x10%} increased Lucky Hit Chance. | You deal {+10%} increased damage while Healthy. |
2-Handed 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. |
2-Handed Axe | {x15.0%} increased damage to Vulnerable enemies. | {+10%} increased Critical Strike Chance against Vulnerable enemies. |
2-Handed Mace | Lucky Hit: Up to a {10%} chance to gain {2} Fury when hitting an enemy. Double the amount of Fury gained while Berserking. | You deal {x15%} increased Critical Strike Damage to Stunned and Vulnerable enemies while Berserking. |
Diablo 4 Barbarian Arsenal Technique Slot
There's one additional aspect of the Arsenal system in Diablo 4 that Barbarian fans need to know about. That is the Technique Slot, and not a lot of information is available on it.
The only thing we know so far is that you will receive a Priority Quest at Level 15 to head to the Dry Steppes zone, which will unlock the Technique Slot.
Check out this fantastic video from YouTuber echohack below diving into the Barbarian class in Diablo 4, including the Arsenal System.
So there you have it, everything you need to know about Diablo 4's Arsenal system for Barbarians to enjoy. We will endeavor to update this article as soon as any information changes.
For more Diablo 4, be sure to check out our dedicated section or some of our Guides & Tutorials just below:
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Diablo 4 PvP - Coming soon!
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