Best Enduring Legacy Build for Season 3 – The First Descendant

by JFFK · September 26, 2025

Welcome to The First Descendant Enduring Legacy Build. This Enduring Legacy Build is updated for Season 3.

This is a Debuffer build, it focuses on supporting fire based Descendants like Serena or Lepic by debuffing the enemy’s fire resistance.

Table of Contents:

You can also view our All Ultimate Weapons in The First Descendant list.

Enduring Legacy Summary

The Enduring Legacy is an Ultimate Machine Gun. A firearm that was reverse engineered from a weapon seized by Vulgus during the apocalypse. After many improvements, it can counter many different attributes. It is particularly effective when used for the Fire Arche ability.

Name: Enduring Legacy
Type: Machine Gun
Tier: Ultimate
Unique Ability: Craftsmanship

Unique Ability “Craftsmanship”

Base Weapon Stat Info

The First Descendant Enduring Legacy Build Stats

Enduring Legacy Build for The First Descendant

Next, let us take a look at an optimized Enduring Legacy Build for The First Descendant.

Here is all the info you need to build a powerful Enduring Legacy:

Enduring Legacy Modules

Modules are an important part of every weapon build in The First Descendant.

General Enduring Legacy Module Configuration Table
Module Slot	Module Name
1	Action and Reaction
2	Fire Rate Up
3	Expand Weapon Charge
4	Concentrate Support Ammo
5	Edging Shot
6	Have Aiming
7	Sharp-Precision Shot
8	Fire Enhancement
9	Better Insight
10	Weak Point Sight

Weapon Readjustment

You can use the Weapon Readjustment at the Weapon Workbench in Albion. Here are the best Weapon Readjustments for the Enduring Legacy:

Firearm ATK
Firearm Critical Hit Damage
Weak Point Damage
Firearm Critical Hit Rate

In any order. Try to upgrade the Weapon Readjustments to at least purple quality.

Weapon Cores

Weapon Cores juice up your damage quite tremendously. However, especially the later-level Weapon Cores are difficult to get. So start with whatever weapon cores you have available. Weapon Cores drop in the Void Erosion Purge endgame activity.

Higher level Weapon Cores drop in the higher level Void Erosion Purge levels in The First Descendant. However, you can gradually work towards the highest level. I recommend trying to get to level six as soon as possible, since it won’t require to clear many stages and will already increase the power of your weapon tremendously.

Best Weapon Cores for the Enduring Legacy:

Rounds per Magazine (Free Augmentation)
Weak Point Damage (Hit Augmentation)
Sprint Speed (Precision Augmentation)
Flex, whatever you prefer (Precision Augmentation)
Flex (Special Augmentation)

Enduring Legacy Lore Info

Immediately after the Apocalypse, and before any decent weapons could be developed, all humanity could do was seize Vulgus firearms. That’s how humans ended up with this weapon’s prototype. Countless knights were sacrificed to steal one Vulgus machine gun.

The gun proved difficult for practical use, however, due to its excessive size and weight. The Magisters continued their efforts and developed versions of the weapon that were an appropriate size and weight for human use.

The records and materials that resulted from their work became the foundation of countless other weapons and firearms that were later developed. It was, indeed, an “Enduring Legacy.”