Welcome to The First Descendant Gley Build Guide for Season 3 Episode 2 Assemble.

Gley is one of The First Descendant’s most explosive and fan-favorite characters. Her unique ability to bypass reloads and unleash a non-stop hail of bullets makes her a powerhouse in any mission. In this guide, we’ll show you how to unlock Gley’s true potential by building around her signature infinite ammo window, maximizing uptime, damage output, and survivability.

Builds Database: View all The First Descendant Builds.

Table of Contents:

  1. How to play Gley: A Deep Dive
  2. Gley Builds Overview
    1. Universal Gley Build
  3. Trigger & Ancestor Modules
  4. Arche Tuning for Gley
  5. Gley Equipment Overview
    1. Best Weapons for Gley
    2. Best Reactor for Gley
    3. Best External Components for Gley
    4. Inversion Reinforcements
    5. All Gley Transcendent Modules Explained
    6. Gley Trigger Modules
  6. Gley Basics
    1. How to unlock Gley
    2. Skills Explanation – Master Gley’s Abilities
    3. How the Infinite Ammo Loop Actually Works ☺️
    4. Module Basics Explained!
    5. Best Grapple Hook for Gley
  7. Gley’s Story

For builds on other Descendants, visit our The First Descendant Builds Database, or check out the Character Tier List or the Weapon Tier List

TFD Wiki: We have expanded Alcasthq with tfd.alcasthq.com, a Wiki & Database for anything related to The First Descendant. Use the Character Editor or the Weapon Editor to theorycraft and create builds yourself. Browse Descendants, Weapons, Leaderboard Loadouts or use the Compare Tool. There are plenty of other features you can check out, too!


Here is a quick list of the strengths and weaknesses of the Gley Build for The First Descendant.

Gley’s Strengths

  • INSANE BOSS DPS
  • INSANE AOE DAMAGE
  • UNLIMITED AMMO – NEVER RELOAD
  • FRENZY MODE
  • ONE BUILD FITS IT ALL
  • POWERFUL ULTIMATE GLEY

Gley Weaknesses

  • REQUIRES MAXED OUT WEAPON


How to Play Gley in the First Descendant

Best Gley Build Guide for The First Descendant TFD MAx Damage

With any Gley Build, you want to prioritize having a 100% uptime on your third skill, which allows you to get infinite ammo! This can easily be achieved with the right skill cooldown reduction and skill duration increase modules. Learn about her skills in detail in the Gley’s Skill Explanation section. Gley’s Transcendent Modules are also exceptional!

Important: Always make sure to have her first skill Frenzied Gley Frenzy active when you activate her 3rd skill Increased Sensory Skill Gley Increased Sensory! Frenzied increases your Firearm ATK and Penetration.


Gley’s AoE Capabilities: Rocket Barrages

Having near infinite ammo pays off with her 3rd skill Increased Sensory Skill Gley Increased Sensory, especially when using a strong Rocket Launcher for AOE damage. Make sure to have a strong AOE weapon at your disposal to maximize her damage for mobbing or any AOE damage-related content.


Gley’s Single Target Damage: Boss Shredding Galore!

Because Gley’s 3rd skill Increased Sensory Skill Gley Increased Sensory gives you infinite ammo, you will be able to deal amazing bossing damage with her. After all, a weapon that doesn’t need to be reloaded will pump out a lot more damage!


Gley’s Equipment: Make Or Break It!

To unlock Gley’s full potential, you need the right Weapons, Reactors, and External Components:

Building a top-tier The First Descendant Gley Build requires not only the right modules but also optimized weapons, reactors, and components.


Best Gley Builds Overview for The First Descendant

Gley Build Setups the first descendant Ultimate Gley Build The First Descendant
In this section, we are going to look at the different best Gley Build Setups for The First Descendant. The optimized setups require a lot of Crystallization Catalysts. We have a full guide on how to farm Crystallization Catalysts in The First Descendant. The Budget setup requires no Crystallization Catalysts.

All Gley build setups require an Energy Activator to increase the Module Capacity. We also have an in-depth guide on how to farm Energy Activators in The First Descendant. Additionally, you will need plenty of Kuiper Shards and Gold to increase Module Levels. Here are the Top 3 Kuiper Shard farm spots!

Equipment: I will cover Weapons, Reactors, and External Components in the Gley Equipment section. To maximize the power of any build, you must get the correct items!

Name Description
Gley Universal Build All-in-One Build, can be used for any type of content!
N/A N/A


Gley Universal Build for any Content

The First Descendant Gley Build All In One Setup

  • Universal Build Type: Works in any content, Mobbing, Dungeons, Void Erosion Purge, Bossing, etc.
  • Universal Build Focus: Optimized for insane damage and good survivability.
  • Playable on: Normal Gley and Ultimate Gley.
  • Requirements: Needs a maxed-out weapon to be effective!

This Universal Gley Build works for any content in The First Descendant. Because Gley is a weapon-based Descendant, we only need to focus on skill cooldown modules and can use the rest to improve our survivability!

This setup is optimized so you get a 100% uptime on her 3rd skill Increased Sensory Skill Gley Increased Sensory. This allows you to basically have infinite ammo, which is very effective on any weapon! And because we don’t need to worry about dealing damage with skills, we can use the extra module slots for some extra survivability!

I do recommend using the Restored Relic Rocket Launcher for most content with Gley. I will recommend a few other options in the Best Gley Weapons section. Restored Relic deals both massive damage in Single-Target and AoE damage. Additionally, it has homing rockets so you don’t even really need to aim.

  • Note 1: You will notice that Focus on Dimension & Non-Attribute module aren’t maxed. This is because we only slot them for the skill cooldown reduction, and that doesn’t change with leveling it up. So you can just leave it at base level and still get the full benefit of the skill cooldown reduction.
  • Note 2: Two skills are marked with Flex, these can be swapped out with something else like attribute resistance vs specific enemies if you prefer that.
Gley Universal Build Module Configuration Table
Module Slot Module Name Mod Level Socket Type Crystallized
0 (Trigger Module) Kuiper Hollow Points N/A N/A N/A
1 (Skill Module) Predator Instinct Max Malachite No
2 Focus on Dimension Base Malachite No
3 Stim Accelerant Max Cerulean Yes
4 Increased HP Max Cerulean Yes
5 Shield Conversion (DEF) Max Rutile Icon Rutile Yes
6 Focus on Non-Attribute (Flex) Base Malachite No
7 (Sub Module) Mid-Air Maneuvering Max Malachite Yes
8 Nimble Fingers Max Malachite Yes
9 MP Conversion Max Malachite Yes
10 HP Collector (Flex) Max Xantic Yes
11 Maximize Duration Max Rutile Icon Rutile Yes
12 Skill Extension Max Rutile Icon Rutile Yes

Arche Tuning for Gley

Gley Arche Tuning for The First Descendant

The Arche Tuning System in The First Descendant is important for every Character; it buffs your stats by a good amount. For The First Descendant Gley, we are focusing on the left and upper left side. This setup works for all weapons, so you won’t have to change it all the time depending on what weapon you use.

You level up Arche Tuning in the Sigma Sector Dropoff Operation. Mutant Cells also drop there with a small chance.

We don’t use any Mutant Cell with this Gley Arche Tuning setup. We want to focus on Multi-Hit and Firearm/Explosive damage.


Trigger and Ancestor Modules for the Gley Build

Trigger and Ancestor Modules are also part of the module category, but they are a special type of module that are harder to unlock and acquire.

  • Trigger Modules: Go into a special slot. Unlock special buffs and unique effects.
  • Ancestor Modules: Go into a normal module slot. Enhance the build by adding additional stats.

Gley Trigger Modules

TFD Kuiper Hollow Rounds Trigger Mod

Trigger Modules are a new type of Modules that can be unlocked. Learn how to unlock Trigger Modules in The First Descendant.

For our The First Descendant Gley Build, you always want to use the Kuiper Hollow Points trigger module. This gives us additional damage at the cost of extra recoil. If your recoil is not managable, you can remove it. 

Gley Ancestor Module

TFD Gley Ancestor Module Thirster's Resolution

Ancestor Modules can be slotted once you have acquired them. However, they are only worth it once you have an Ancestor module with good stat rolls on them.

Gley Ancestor Module: Thirster’s Resolution

It is only worth slotting an Ancestor Module if you have good rolls on it; otherwise, it isn’t worth it.

  • Ideal Positive Rolls
    • Max HP
    • Duration
    • Cooldown
  • Ideal Negative Rolls
    • Skill Crit Rate
    • Skill Crit Damage
    • Range

Gley Equipment Overview in The First Descendant

Best Gley Build Guide for The First Descendant TFD META

Equipment is the cornerstone of any successful The First Descendant Build. For Gley, having the right setup can mean the difference between dominating a dungeon and falling short. This section breaks down the essential equipment types: Weapons, Reactors, External Components, and Transcendent Modules, and explains how they maximize her power.

Ultimate Gley Equipment Guide
Equipment Type Importance Key Benefits
Weapons icon TFD

Weapons

  • Critical for maximizing damage.
  • Gley relies on maxed-out weapons.
  • Gley’s 3rd skill allows for infinite ammo.
  • Increases overall DPS.
  • Skills amplify the effect of the weapons Gley use.
  • Proper weapon selection can double or triple damage.
Reactor icon TFD

Reactors

  • Essential for boosting skill performance.
  • Gley only needs skill cooldown and duration perks.
  • Enhances skill potency.
  • Ensures Gley’s abilities perform at peak levels.
External Components icon TFD

External Components

  • Arguably the most impactful equipment.
  • Dramatically improves survivability and utility.
  • Set Buffs with 2/4 pieces.
  • Quadruples stats like HP or DEF.
  • Adds utility like MP recovery.
  • Enables effective performance in high-difficulty content.
  • Core System Enhancements.
inversion reinforcement icon tfd setup

Inversion Reinforcements

  • Adds further buffs to your build.
  • Perks that can make a difference in build power.
Modules icon TFD

Transcendent Modules

  • Unlocks advanced playstyles.
  • Essential for specialized builds.
  • Significantly boosts skill efficiency and power.


Best Weapon for the Gley Build in The First Descendant

Depending on what content you do with Gley, you will need different weapons. Below you can find the Top 3 Weapons for Gley in The First Descendant.

Note: You can just run around with the Restored Relic for any content and you will be set. So I would focus on building out this weapon first and then go build others.

Top 3 Weapons for Gley

Top 3 Weapons for Gley
Weapon Category Key Features Why It’s Great for Gley
The First Descendant Restored Relic Weapon Build

Restored Relic

Launcher
  • Guided Rounds
  • Cluster Bombs
  • This is a powerful rocket launcher that fires guided rounds that explode into clusters to hit even more enemies!
  • Pair this with Gley’s infinite ammo and a high fire rate and everything dies.
  • You won’t even really have to aim because the weapon has homing missiles.
  • Can be used for single-target and AOE damage.
The First Descendant Malevolent Weapon Build

Malevolent

Hand Cannon
  • Strong AoE damage
  • One of the most powerful AoE weapons.
The First Descendant Last Dagger Weapon Build

Last Dagger

Hand Gun
  • High Burst Single Target DPS.
  • Insane Fire Rate
  • Currently, one of the most powerful ST weapons.
  • Fast fire rate to nuke targets.

 

Other Useful Weapons

Other Useful Weapon Options for Gley
Weapon Category Key Features Why It’s Great for Gley
TFD Voltia Icon Ultimate WEapon

Voltia

Beam Rifle
  • Instantly destroys Anti-Void Shields and Arch Barriers.
  • Electrocutes nearby enemies.
  • Best weapon to instantly destroy Anti-Void Shields and Arche Barriers, nothing even comes close to it.
  • A must-have in your group if you are doing Void Vessel Operation runs!
TFD Thunder Cage Icon Ultimate Weapon

Thunder Cage

Submachine Gun
  • Everyone has this weapon from the main story (easily accessible)
  • “Newbies Best Friend”
  • Electric Shockwaves
  • While this isn’t the best weapon out there, it is easily accessible.
  • Deals great AoE damage.
The First Descendant Executor Weapon Build

Executor

Shotgun
  • Insane Burst Damage
  • Close Range Only
  • Overall very powerful Single-Target shotgun.
  • Infinite ammo makes this weapon powerful with Gley.
The First Descendant Albion Cavalry Gun Weapon Build

Albion Cavalry Gun

Machine Gun
  • Strong AoE damage with Multi hit.
  • Stuns enemies.
  • Stuns nearby enemies.
  • Fast Fire Rate
  • Overall High DPS Weapon
  • Can be used for both AoE and Single-Target

Best Reactor for Gley in The First Descendant

Selecting the best reactor for Gley in The First Descendant can significantly enhance her abilities, allowing you to maximize her effectiveness in various scenarios. Not only does the reactor determine your skill damage, but it also gives additional secondary benefits through modifiers.

For Gley, the type of reactor doesn’t matter because she relies on weapons to deal damage. Only the modifiers are important! We want Skill Cooldown and Skill Duration.

Best Reactors for Gley Builds in The First Descendant
Best Reactor Specs Key Benefits Best Builds
Any Reactor
  • Skill Duration
  • Skill Cooldown
This allows us to get max uptime on our skills.

How to find the Location of Reactors

The First Descendant How To Find Reactors

Reactor drop locations change every day. Not many players know this and get confused. Now, there is a reactor search function in-game. Go to the map and press on Difficulty Level Rewards. In here, you can see where all the reactors currently drop.

Note: It is possible that not all reactor types are currently dropping. You have to come back and recheck every day.

If your specified reactor drops in an area, you go there and farm any missions and monsters (Preferably missions with lots of monster spawns). There will be plenty of reactors dropping from monsters all over the place, any monster works. It will take a while to get a good reactor!


Best External Components for the Gley Build

With Gley, you want to combine two different External Component Sets called Fire Brand and Shell Crusher set.

  • The Fire Brand Set is useful because it gives us extra Skill Duration to have a 100% uptime on our infinite ammo skill.
  • The Shell Crusher Set adds extra Fire Rate. Every bit of fire rate counts, especially if we use a rocket launcher!

Additionally, External Components now also have core slots; it is recommended to slot Max HP and DEF cores.

Gley External Component Sets
External Components Set Set Effect Why It’s Good Recommended Build
Fire Brand Set
  • 2 Set:
    • Effect Skill Effect Range +6.5%[+]
    • Skill Duration +6.5%[+]
  • Extra Skill Duration
Shell Crusher Set
  • 2 Set
    • Effect Fire Rate +5%[x]
  • Increased Fire Rate for Weapons


External Components Combo for Gley – Fire Brand and Shell Crusher

  • How to get the Fire Brand Set: You can get the Shell Crusher set in the Sigma Sector Dropoff Operation in the Broken Boundary mission on normal or high-risk.
  • How to get the Shell Crusher Set: You can get the Shell Crusher set in the Sigma Sector Dropoff Operation in the Isolated Desert mission on normal or high-risk.

Gley External Components Best Setup
External Component Part Base Stat Selective Best Stats Cores
fire brand auxiliary icon tfd

Firebrand Auxiliary Power

Max HP
  • Max HP
  • MP Recovery Out of Combat
  • Max HP
  • DEF
fire brand sensor icon tfd

Firebrand Sensor

Max Shield
  • Max MP
  • MP Recovery in Combat
  • Max HP
  • DEF
shell crusher memory icon tfd

Shell Crusher Memory

Max HP
  • MP Recovery Modifier
  • DEF
  • Max HP
  • DEF
shell crusher processor icon tfd

Shell Crusher Processor

Max HP
  • Max Shield
  • Shield Recovery Modifier
  • Max HP
  • DEF


Inversion Reinforcements Setup for Gley

You can find the Inversion Reinforcements in the inventory, located on the bottom left side. This changes with every new season and needs to be leveled up again. You level up Inversion Reinforcements by doing any activity. However, the fastest way to advance it is by completing Disrupt Invasion (max 4 daily) in the dungeon terminal with the red dungeons.

At max level, you have unlocked everything. While the last perk is always active in each row, you can only slot three additional perks at the bottom. Here is what you want to prioritize:

  • Hunt: Pick Arche Circulation Tactic (Faster Skill Cooldown).
  • Attribute: Strike Point Amplification.
  • Recovery: None.
  • Survival: Deployed Hardened Shell.
  • Season: None.

All Gley Transcendent Modules Explained

First, let us look at the full list of all Transcendent Modules for Gley in The First Descendant. It is important to note that not all of the modules will be used. Some are more effective than others!

Module Name Module Description Best In Slot
Transcendent Module Predator Instinct icon tfd gley
Predator Instinct
Using a firearm while Frenzied gradually increases Firearm ATK.
Transcendent Module massive sanguification icon tfd gley
Massive Sanguification
Modifies Life Siphon to allow the absorption of Life Spheres during Non-Frenzied state.
  • Not Used
Transcendent Module super senses icon tfd gley
Super Senses
Modifies the effects of Frenzied state’s Maximize Lethality. Fire Rate becomes fixed, but Duration increases significantly.
  • Not Used

Blood and Iron
Life Spheres can no longer be acquired with the Thirst effect. Instead, Power of Life can be obtained when attacks land Firearm Critical Hits.
  • Not Used
Transcendent Module explosive life icon tfd gley
Explosive Life (Ult)
The chance to create a Life Sphere is slightly increased. Detonates all nearby Life Spheres to deal damage instead of absorbing HP. Recovers Power of Life based on the number of Life Spheres exploded.
  • Not Used
Transcendent Module Demonic Modification icon tfd gley
Demonic Modification (Ult)
Unique Weapon has a fixed Fire Rate and consumes HP based on the duration of True Aim. Bullets deal additional damage proportional to the HP consumed, and attacking Weak Points increases the chance of HP Recovery.
  • Not Used


Gley Basics in The First Descendant

Ultimate Gley Guide

If it is your first time playing Gley in The First Descendant, here are some useful things you should know.

  1. How to unlock Gley
  2. Skills Explanation – Master Gley’s Abilities
  3. Module Basics Explained!
  4. Best Grapple Hook for Gley

How to Get Gley in The First Descendant

Let’s take a quick look at how to unlock Gley in the First Descendant. To unlock Gley you have to purchase her from the store or research her. You need the following items to research Gley:

  • 1x Gley Enhanced Cells
    • 246x Monad Shard
    • 430x Silicon
    • 38x Cooling Metallic Foil
    • 1x Gley Enhanced Cell Blueprint
    • 200k Gold
  • 1x Gley Stabilizer
    • 519x Metal Accelerant
    • 292x Felctorite
    • 60x Complex Carbon Activator
    • 1x Gley Stabilizer Blueprint
    • 200k Gold
  • 1x Gley Spiral Catalyst
    • 363x Nanopolymers
    • 408x Ceramic Composite
    • 99x Synthesized Artificial Viometal
    • 1x Gley Spiral Catalyst Blueprint
    • 200k Gold
  • 1x Gley Code
    • Location 1 – Intercept Battle: Common Grave Walker: Amorphous Material Pattern 002
    • Location 2 – Intercept Battle: Hard Dead Bridge: Amorphous Material Pattern 069
    • Location 3 – Intercept Battle: Hard Molten Fortress: Amorphous Material Pattern 124
    • Location 4 – Agna Desert Hard – Abyssal Void Fusion Reactor – Agna Desert Miragestone Deposit
  • 400k Gold

When you visit Magisters Anais at the Research Institute you can hover over each item. Then click on Acquisition Info and it will tell you where this specific item drops. For a more in-depth guide, please visit the How to unlock Gley in The First Descendant and the How to unlock Ultimate Gley guide.


The First Descendant Gley Skills Explained

In this section, we are going to explain the skills available to our Gley Build in the First Descendant, how each skill works and the best ways for you to use them.

 

Icon Skill Name Description
Frenzied Gley Frenzied Increases Firearm ATK and Penetration, but reduces HP Recovery.
Life Siphon Gley Life Siphon Damages enemies in range while recovering your HP. Grants additional effects depending on Gley’s Frenzy state.
Increased Sensory Skill Gley Increased Sensory Applies different effects depending on Gley’s Frenzy state. INFINITE AMMO SKILL.
Massacre Skill Gley Massacre Switches the equipped weapon to Massacre. Enemies hit by Massacre take heavy damage and are afflicted with additional effects, depending on Gley’s Frenzy state.
Thirst Gley Thirst (Passive) Gley cannot have Shield or MP. Defeated enemies drop a Life Sphere. Obtaining a Life Sphere restores HP and adds a stack of Power of Life.

Frenzied

Frenzied Skill Gley TFD

Frenzied Gley

Increases Firearm ATK and Penetration, but reduces HP Recovery.

Frenzied Skill Description:

  • Non-Attribute – Singular
  • Enter Frenzied state.
  • In Frenzied state, increases Firearm ATK and Penetration, but reduce HP Recovery.

How to use Frenzied:

Frenzied allows you to toggle Gley between her normal and Frenzied states. This determines how most of her other skills will function. When Frenzied you lose health, but can restore it by killing enemies and taking their Life Spheres, allowing you to stay in Frenzy for longer. You can leave Frenzy whenever you want by using the skill again. You can do this without worry, as the cooldown of Frenzied is only 1 second.

Life Siphon

Life Siphon skill gley tfd

Life Siphon Gley

Damages enemies in range while recovering your HP. Grants additional effects depending on Gley’s Frenzy state.

Life Siphon Description:

  • Non-Attribute – Dimension
  • Deals Damage to enemies within range while recovering HP. HP Recovery depends on how many enemies you hit.
  • Hit enemies are afflicted with additional effects depending on Gley’s state.
  • When in Frenzied state, DMG increases, and increases even more if current HP is low.
  • When in non-Frenzies state, gains Vigor for a certain period of time and decreases incoming DMG. Vigor stacks according to the number of enemies hit.

How to use Life Siphon:

Life Siphon grants Gley another way to heal while in Frenzy mode, so she is not completely reliant on Life Spheres. It also deals decent AOE damage and effectively drains HP from enemies.

To a certain extent, Life Siphon is a high risk high reward type of skill, since when Frenzied the damage will ramp up further if your HP is low.

Increased Sensory

Increased Sensory Skill gley tfd

Increased Sensory Skill Gley

Applies different effects depending on Gley’s Frenzy state.

Increased Sensory Description:

  • Non-Attribute – Singular
  • Applied different effects depending on Gley’s state.
  • When Frenzied, applies Maximize Lethality during which bullets are not consumed for a certain period of time, but Movement Speed decreases.
  • When Non-Frenzied, applies Maximize Recovery during which the drop rate of Life Spheres and Recovery increase for a certain period of time.

How to use Increased Sensory:

For our Gley builds you will notice that we have plenty of Skill cooldown reduction and Skill duration increase modules. These are here to get this skill to a higher duration than its cooldown. That way we achieve infinite ammo!

Massacre

Massacre skill gley tfd

Massacre Skill Gley

Switches the equipped weapon to Massacre. Enemies hit by Massacre take heavy damage and are afflicted with additional effects, depending on Gley’s Frenzy state.

Massacre Description:

  • Non-Attribute – Dimension
  • Switches the equipped weapon to Massacre. Massacre is influenced by certain stats of the equipped weapon, such as Firearm ATK power and Fire Rate (excluding Explosive ATK), and damages enemies.
  • The bullets loaded are affected by the amount of Power of Life owned.
  • Enemies hit by Massacre suffer damage and are inflicted with additional effects depending on Gley’s state.
  • When Frenzied, deals additional damage, or deals great damage if current HP is low.
  • When Non-Frenzied, the enemies hit are Stunned.

How to use Massacre:

At its baseline, Massacre deals the same amount of damage as your regular weapon. However it can deal twice as much damage per shot if you are Frenzied and about half empty on health. This is another risk/reward skill for Gley. If you want to take the risk of fighting while heavily damaged then you can get potentially awesome damage buffs from the Massacre skill.

Remember that you need to have at least three Power of Life saved to use Massacre.

Thirst (Passive)

Thirst passive gley tfd

Thirst Gley

Gley cannot have Shield or MP. Defeated enemies drop a Life Sphere. Obtaining a Life Sphere restores HP and adds a stack of Power of Life.

Thirst Passive Description:

  • Non-Attribute
  • Gley cannot have Shield or MP.
  • Instead, when in Non-Frenzied state, decreases incoming DMG.
  • Enemies killed by Gley have a chance to drop Life Spheres.
  • Upon acquiring a Life Sphere, recovers HP proportional to Max HP and acquires Power of Life.

How to use Thirst:

The Thirst passive is always active. Take note of the fact that Gley doesn’t have MP or a Shield. Thirst allows Gley to heal by killing enemies, and is a vital aspect of managing her abilities, many of which cost Power of Life to use, which can only be gained by picking up Life Spheres generated by Thirst. Gley’s playstyle is different to most other characters in The First Descendant – if you enjoy a strong risk/reward playstyle then Gley might be the correct class for you.


How the Infinite Ammo Loop Works On Gley

By activating Increased Sensory Skill Gley Increased Sensory while in Frenzied Gley Frenzied state you apply Maximize Lethality. While this is active, bullets are not consumed.

Skills have cooldowns and durations. For the Gley infinite ammo loop to work, we need a 100% uptime. Therefore, it is important to get enough skill cooldown reduction and skill duration increase. This is what the build aims to achieve.

  1. Activate Frenzied Gley Frenzied.
  2. Activate Increased Sensory Skill Gley Increased Sensory.
  3. Spam Bullets until skill runs out, reapply.
  4. Repeat.

How Modules Work in The First Descendant

Modules are the bread and butter of all The First Descendant Builds. There are a few important things to remember about modules. This is for both Descendant and Weapon Modules.

While most builds require you to increase Module Capacity with an Energy Activator (you get two for free), they won’t require you to reduce the Module cost with Crystallization Catalyst. However, if you want to truly min-max a build, you will need plenty of these Catalysts.

  1. How to increase your Module Capacity
  2. Module Levels and Cost
    1. Kuiper Shards & best way to farm!
  3. Reduce the cost of Modules
  4. How to farm Modules

How to Increase Module Capacity

You get a base of 45 Modules for every Descendant character. And you can increase this up to 85 currently. First off, always slot a Sub Attack Module (Slot 7). When you increase this to the max level you will get an additional 10 Module Capacity. if you use a Crystallization Catalyst on the Sub Attack Module, you even get 15 extra slots. You will see this in the setup below.

Additionally, you can use an Energy Activator to increase your Module Capacity by another 20. However, these are fairly hard to farm, only use them on your best Descendants.

Lastly, increasing your Mastery Rank will also increase Module Capacity. Rank 1 gives you 25 Module Capacity, Rank 20 gives you 50 Module Capacity. That is how we reach the 80 Module Capacity that you see on most builds.

  1. Slot a Sub Attack Module (and max it out to get +10 capacity, crystallize it for +15)
  2. Use an Energy Activator (2o extra capacity)
  3. Increase Mastery Rank (25 base capacity, max 50)

Weapons: Basically the same, but because you don’t have Subattack Modules, the Energy Activator gives you 30 instead of just 20 extra capacity.

You can also read my in-depth guide on how to increase Module Capacity in The First Descendant if you need more information. Or my Best Energy Activator Farm Spots and our Best Crystallization Catalyst Farm Spots. I tested all of the grind spots by myself and have already farmed plenty of these items with this method.


Module Levels and Cost

Modules can be enhanced (leveled up) with Kuiper Shards in The First Descendant. Enhancing Modules increases their power. At higher levels, the power will increase way more than at lower levels. Therefore it is always recommended to max out the most important Module first.

Here is an example of a must-have Module called Increased HP for our Descendant. You will notice that we start at 22%, but at the max level, we get a whopping 218.5% increase in health!

Level Capacity Cost Power
0 – Base 6 22%
1 7 31.2%
2 8 41.4%
3 9 54.4%
4 10 69.8%
5 11 87.2%
6 12 108.2%
7 13 130.2%
8 14 155.2%
9 15 184.5%
10 16 218.5%

Transcendent Modules are the exception; they decrease Capacity Cost with higher levels!

For an in-depth overview, please visit our How to Level Up Modules in The First Descendant guide.

How to Farm Kuiper Shards

Kuiper Shards are used to level up Modules. We have a guide on the Top 3 Kuiper Shard Farming Locations in the First Descendant. We explain how to most efficiently farm Kuiper Shards (300-500k/hour) and show the amount you need to level up mods. As a summary, to max out a Module you need:

  • Normal Modules: 103’100 Kuiper Shards
  • Rare Modules: 206’200 Kuiper Shards
  • Ultimate Modules: 309’300 Kuiper Shards
  • Transcendent Modules: 515’500 Kuiper Shards

Always max out the most important Modules first, we will showcase the order below.


How to Reduce the Cost of Modules

To reduce the cost of Modules you need Crystallization Catalysts in The First Descendant. These require a lot of time investment. If you want to completely min-max you need to get plenty of them as technically, every slot can have a specific socket type to half the cost.

Modules have Socket Types. Our Increased HP Module has the Cerulean Socket Type.

  • Module: Increased HP
  • Socket Type: Cerulean

This is important because if we place our Increased HP Module in the fitting Socket Type, it will half the cost of the Module!

Modules Socket Type cost reduction THe First Descendant


How to farm Modules in The First Descendant

Most The First Descendant Modules can be acquired fairly easily, but the higher-quality ones (Ultimate, Transcendent) are more tedious to obtain. Here is the easiest process to farm Modules quickly.

Open Map > Swap to Access Info > Select Modules

Here, you can find all Modules and their drop locations. If a module drops from several locations, it is recommended to select drop locations with higher drop chances.

There isn’t really much more to this. Simply check the location and go farm. Normal and Rare quality Modules have 30-50% drop chances in most cases. Ultimate ones range around the 5% mark and Transcendent ones can be a tough cookie with around 2% drop chance.


Smooth Grapple Hook for your Gley Build

Using the standard Grapple Hook in The First Descendant can be a pain, and it feels kinda frustrating at times. Don’t worry, there is a way better alternative that will make it a joy to use the grappling hook!

It is called the Mid-Air Maneuvering Sub Module. I use this on all my The First Descendant Builds because it improves grappling by so much.

Mid Air Maneuvering Hook

With this Module, you can attach your Grapple Hook to anything, even air! That means you can simply aim towards the sky and Hook up your grapple hook there for guaranteed fast movement!

Here is a guide on how to get the Mid-Air Maneuvering Sub Module in The First Descendant. It won’t take a lot of effort, but it will improve your build and overall gameplay in The First Descendant.


Gley’s Story in The First Descendant

A utility-type dealer who becomes stronger the more she gnaws on herself. Unleashes the rage inside her to quickly subdue her enemies. 

“If you keep looking after others until the very end, who look after you, Mom?” Dia Elias asked her mother. ‘Until the very end’ was the slogan of Albion’s Medical Corps, and it was the first time that their captain, Gley, faced someone who questioned this slogan. A question that had never been asked by, not asked to, someone who had declared and lived by this slogan all her life.

Hearing this question from her own daughter brought about complicated emotions within Gley, but she could not grant her daughter’s request to allow her to protect herself. Gley, who had lost her entire family on the battlefield, was afraid. If she were to lose her daughter as well, then she would lose everything.

Undeterred by Gley’s stubbornness, Dia went to her mother’s old colleague and fellow military academy professor, Ajax, for a recommendation letter and thus enlisted in the military. Gley, feeling betrayed by Ajax, who knew of her past scars and yet still wrote the recommendation letter, refused to even speak to him.

TFD Gley Character The First Descendant image

Despite feeling much concern over her daughter, who had stubbornly become a soldier in the end, Gley decided to give Dia a chance and trust in her decision, which she would end up regretting when an incident occurred, in which all forces that had been deployed to the Vespers strike operation, excluding the Descendants squad, suffered massive casualties, with many going MIA. Among those who had gone missing were Gley and her daughter.

While Albion Headquarters frantically searched for the missing personnel, Gley and Dia were subjected to horrible experiments performed by the Order of Truth. The mother and daughter duo were used as test subjects for the Order’s experiments to create a new ‘species’ by injecting Vulgus DNA into human bodies. Gley despaired at her situation, as she could only tremble in anger helplessly as her daughter’s agonizing screams echoed around her.

When Gley, who had lost consciousness in her rage and despair, came to her senses, she was met with the sight of her adjutant cowering in a corner and a completely destroyed intensive care unit. Regaining her composure, Gley asked “Where is my daughter?”, to which nobody replied. Just as she was about to enter another frenzy in her rage, her adjutant shouted, “Her body was never found! She may still be alive, Captain! We’re the Medical Corps, remember? We shouldn’t give up hope until the very end!”.

Hearing this, she felt a warmth surround her body. Gley, who finally calmed down, felt a spark of hope. If Dia was still alive, then she could be saved. As it is the duty of the Medical Corps to never give up until the very end, Gley picked herself up. Her mission to retrieve her daughter was only beginning.


Related Guides for The First Descendant

You can also check out our Ultimate Weapons Database for The First Descendant or the Builds Database for The First Descendant.