If you're looking for a strong tank character to round out your squad in The First Descendant, Ajax is a safe bet. Not only is he one of the coolest-looking and most intimidating characters to play, but he has a skill set that your teammates will love. The best Ajax build is so powerful, that it makes for a great class if you play solo in The First Descendant.
The First Descendant features 19 different characters to play as. There are 14 basic Descendants and five Ultimate versions of certain characters. However, to unlock them you'll need to get more Caliber.
Viessa, Lepic, and Ajax are the three characters you can pick from at the start of The First Descendant. Assuming you picked Ajax, you made the right choice. Ajax is a powerful tank, and with the best build for him, you'll easily be able to handle the wave of enemies being thrown at you throughout the game. Even more intriguing, if you like the character that much, there's an Ultimate Ajax version you can unlock.

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The Best Ajax Build In The First Descendant
First You Must Master This Descendant's Skills
Thanks to the guide by KaidGames2 on YouTube, the best Ajax build in The First Descendant is just a matter of setting up the right weapons and modules. At the same time, understanding this character's abilities is key to getting the most out of this build. Most importantly, you need to learn how to use Ajax's Void Energy mechanic effectively.
Best Skills
When you use one of Ajax's skills, you will fill one of three sections of your Void Energy bar. This is the yellow bar underneath the blue mana bar. Once the Void Energy bar is full, any skill you cast will be an Enhanced Skill. This essentially boosts the stats of normal skills, allowing you to hit harder. Additionally, filling one section of the Void Energy bar grants you a skill cooldown bonus: 5% for the first bar, 10% at two bars, and 20% when full.
Skill |
What It Does |
---|---|
Event Horizon (ive) |
Acquires Void Energy after using skills. When the Void Energy reaches its maximum amount, it enhances skills and grants additional effects. |
Orbit Barrier (Active) |
Creates a shield in front of Ajax. Durability increases proportionally to Ajax’s HP and DEF (If enhanced, reflects damage proportional to DEF to enemies hitting the barrier). |
Void Walk (Active) |
Leaps into the air and lands on the ground to strike nearby enemies, stunning them (If enhanced, Max Shield increases for a certain period of time). |
Expulsion |
|
Strikes nearby enemies, knocking them back (If enhanced, knockback range and Max Shield are increased). |
|
Creates a dome-shaped shield. Durability increases proportionally to Ajax’s HP and DEF (If enhanced, reflects damage proportional to DEF to enemies hitting the barrier). |
|
Hypercube |
Ajax has a fun skill set, especially with the cooldown bonus, as he can constantly throw out abilities to help your team. One of the best for engaging fights is Void Walk because it stuns enemies, allowing you and your teammates to get some free hits in.
Best Modules for Ajax In The First Descendant
Focus On Health And Defense Buffs
The next area you'll want to look at to achieve the best Ajax build is the Modules you're going to use. Modules are upgrades that you can install on your Descendant and their weapon. For this specific build, you're looking to make Ajax more tanky by buffing his health and defense stats. Moreover, you'll want to utilize modules that buff his skills. The best ones for the early game can be seen below:
Slot |
Module |
Quality |
---|---|---|
1 (Skill Module) |
Empty |
N/A |
2 |
Increased DEF |
Standard |
3 |
Shield Conversion (MP) |
N/A |
4 |
Increased HP |
Standard |
5 |
Skill Expansion |
Standard |
6 |
Increased Shield |
Standard |
7 (Sub Module) |
Dual Claw |
Standard |
8 |
Empty |
N/A |
9 |
Empty |
N/A |
10 |
Tech Specialist |
Standard |
11 |
Player Choice |
N/A |
12 |
Empty |
N/A |
You'll see that "player choice" is written in slot 11. That's because there's some flexibility with the Modules you choose for this Ajax build. That said, you're best choosing the Module that will be most beneficial to your playstyle or provide the best counter to your enemies. In fact, you can constantly switch up your Modules to better counter specific enemies; just make sure to always keep a focus on buffing Ajax's health, defense, and skills to maximize his potential.
Best Reactor & External Components
Reactors and External Components are two more components that work to improve your character and their stats. Since you're putting so much emphasis on Ajax's skills with this build, you'll want to pick a Reactor with a high skill power. This really pushes this Ajax build to the best it can be. External Components that boost the defense stats play well into this build, but they can be hard to come by so go with whatever you have on hand.
Best Weapons For Ajax In The Last Descendant
The Albion Cavalry Gun Is Your Best Option
Weapons are the last component to creating the best Ajax build in The First Descendant. When it comes to first-person shooters and third-person shooters, weapons and attachments largely come down to preference. However, if you're playing Ajax, you need to run the Albion Cavalry Gun. This weapon does more damage to stunned enemies. Therefore, it's the ideal combination with your Void Walk Skill. The Enhanced version really dishes out some damage.
Your other two weapons are personal preference. Nazeistra's Devotion is a good secondary if you like something akin to a magnum. Nonetheless, it's always fun to try out new weapons until you find the perfect loadout. But that's not too much of a worry now you have the best Ajax build in The Last Descendant.
Credit: KaidGames2 | YouTube

The First Descendant
- Released
- July 2, 2024
- ESRB
- Mature 17+ // Violence, Blood, Suggestive Themes, Strong Language
- Developer(s)
- Nexon Games
- Publisher(s)
- Nexon
- Multiplayer
- Online Multiplayer
- Platform(s)
- PC