TFD Descendant & Weapon Best Mod Guide (Updates)

Game: The First Descendant
Time: 2024-07-04
Views: 1154

 

 

This article describes the best weapons for different Descendants and the relationship between mods and weapons, how to get Kper fragments faster to upgrade weapon levels. Unlock the best AOE characters and weapons as early as possible by completing the story.

BunnySharenAjaxGley
ViessaValby  

How to get Kper fragments and gold faster

Valby Gold Farm Mod Builds

3 Minutes 400K Gold for Solo Runs 
Location: Vulgus Strategic outpost 
You need to destroy all power units within 7 Seconds. The timing of the monster spawn will be affected by how quickly you destroy.

These Builds need skill range and skill duration modules based on cool down and damage, use two crystallization catalysts to achieve this, build skill expansion to maximize range skill duration, and the battle of stamina for cool down focus, on non-attribute focus on Dimension MP conversion, and non-enforced Nimble fingers, make sure to use a Max Level module to reach 80 capacity, Final module Supply moisture for increased skill duration and Firearm critical hit rate.

Use cooldown modules for spamming the Clean Up for cooldown MP conversion, Nimble fingers. focus on non-attribute and focus on dimension enhance damage modules to ensure 34k tick damage from your Clean Up skill this is crucial for one-shotting Monsters and faster spawn times.

Skill ExpansionSkill ExtensionMaximize Duration
Skill Effect Range +92.3%Skill Duration +36.5%Skill Duration +10%, Skill Power Modifier -5%
NormalNormalRare | Cooldown
Lvl 10Lvl 10Lvl -
Cost 15Cost 15Cost 5
Type RutileType RutileType Rutile
Battle of StaminaFocus on Non-AttributeFocus on Dimension
Max HP +12%, Skill Duration +8.8%Non-Attribute Skill Power +77.2%, Skill Cooldown -6.1%Dimension Skill Power Modifier +68.2% Skill Cooldown -6.1%
Rare | HPRare | BattleRare | Attack
Lvl -Lvl 10Lvl 10
Cost 6Cost 16Cost 16
Type CeruleanType MalachiteType Malachite
MP ConversionNimble FingersSupply Moisture
Skill Cooldown -36.5%, Max MP -15%Skill Cooldown -6%While on water, increases Firearm Critical Hit Rate, Skill Critical Hit Rate, Skill Duration, and Firearm Attribute Trigger Rate. Reduction of MP consumption does not apply.
Rare | ControlNormalTranscendent
Lvl 10Lvl -Lvl 10
Cost 15Cost 5Cost 4
Type MalachiteType MalachiteType Malachite

If using skill duration equip a cooldown reactor and adjust the Nimble fingers module to non-enhanced Nimble fingers and battle of stamina components.

Materialized Phase Reactor

Valby Reactor - U4GM

Additional Skill ATK When Attacking Colossus 
Skill Cooldown

Reactor cooldown option and non-attribute dimension skill reactor components Slayer four piece set for increased skill damage and gold drop rate from memory alternatively use a reactor matching your weapon for a 160% skill damage boost.

Slayer Set

Slayer Auxiliary PowerSlayer MemorySlayer ProcessorSlayer Sensor
DEF 3512Max Shield 275Max HP 646Max Shield 206
Max HP 875Electric Resistance 3624Toxin Resistance 3576Max MP 140
MP Recovery Out of Combat 2.32Gold Drop Rate lncrease Modifier 0.19xMax Shield 270MP Recovery in Combat 0.237

If you don't have the Slayer set, Uses a fully modded Afterglow with an edging shot module despite the firearm attack reduction for a 36% critical hit rate boost, combined with Supply moisture gives me over 100% critical hit rate, allows me to destroy power units quickly you can. use different gun modules but focus on strong weapons to defeat power units faster.

Valby Build - U4GM

The key attributes 
1. Critical Hit Rate 
- Ensures that your attacks, especially those targeting power units, deal maximum damage consistently. This is crucial for quickly destroying power units and maximizing gold drops.

2. Skill Range 
- Increases the area of effect of your abilities, allowing you to hit more targets simultaneously, clearing enemies quickly and efficiently. This leads to faster runs and higher gold yields.

3. Skill Duration 
- Extends the time your abilities remain active, making them more effective over longer periods. This attribute is particularly useful when dealing with multiple waves of enemies or when focusing on sustained damage.

4. Cooldown Reduction 
- Reduces the time it takes for your abilities to recharge, allowing for more frequent use of your powerful skills. This is critical for maintaining high damage output and ensuring you can repeatedly destroy power units as they appear.

5. Skill Damage 
- Increases the damage dealt by your abilities, ensuring that you can defeat enemies and destroy power units swiftly. High-skill damage is necessary to achieve the required DPS for efficient gold farming.

6. Gold Drop Rate 
- A higher Gold Drop Rate ensures that you receive more gold from each enemy defeated or object destroyed. This is essential for maximizing your earnings.

7. MP Conversion 
- Efficiently converts mana points (MP) for skill use, ensuring you have the necessary resources to keep your abilities active without interruption.

Viessa Mods and Reactor

For more information about Viessa's skills, strategies, and battlefield positioning, please read - the Viessa User Guide.

Frozen Mechanics Reactor 
Viessa Reactor - U4GM

Chill skill Power Boost Ratioi 0.2x 
Tech Skill Power Boost Ratio 0.2x 
Fusion Skill Power Boost Ratio 0.075x 
Chill skill Power Boost Ratio 0.071x

With a "Chill Skill Power Boost Ratio" the damage output of abilities that deal chill or ice damage, which is Viessa's primary element. Having a Reactor with bonuses to "Tech" or "Chill" damage can significantly enhance the effectiveness of her ice-based abilities.

Uses the "Absolute Zero" mod, which increases the skill power modifier of all her skills, a Reactor that boosts skill power further amplifies this effect, leading to significantly increased damage output.

External Components 
Slayer Set

2 Set 
General Rounds Capacity +8%

4 Set 
Rounds per Magazine +9% Skill Cost +15% 
Skill Power +26.1% 
When defeating enemies inflicted with Towed, recovers MP and SpecializedResource 12.2% at a 17% chance.

The Slayer Set typically provides bonuses that enhance overall damage, making it particularly useful when focused on maximizing their DPS. This can include increases to basic attack damage, skill power, or critical hit damage.

The set often includes modifiers that enhance the power of specific skills or abilities. For characters like Viessa, this could mean additional chill damage or increased effectiveness of ice-based abilities. Pieces of the Slayer Set may also reduce cooldown times for abilities, allowing players to use their powerful skills more frequently in battle.

To optimize the Slayer Set's benefits, should consider complementing it with other gear, mods, or abilities that align with the set's strengths, such as increasing critical hit rates or further reducing cooldowns.

Gley Reactor Components

Reactors can be customized with different attributes such as skill power, cooldown reduction, and specific attribute enhancements. For Glay, a reactor that enhances skill power, particularly for dimension and non-attribute skills, is highly beneficial.

For more information about Gley's skills, strategies, and battlefield positioning, please read - the Gley User Guide.

Materialized Phase Reactor 
This reactor focuses on enhancing the dimensional and non-attribute skill power of a character.

Gley Reactor - U4GM

Key Attributes for Reactor 
1. Skill Power Boosts: 
- Non-Attribute Skill Power: Enhances the power of Glay's non-attribute skills. This is particularly useful for her abilities like Massacre, which rely heavily on skill power for damage output. 
- Dimension Skill Power: Increases the effectiveness of dimensional skills. For Glay, this could enhance specific abilities that deal damage based on dimensional attributes.

2. Cooldown Reduction: 
- Is essential for Glay to maintain high uptime on her abilities, especially her crucial skills like Increased Sensory for Infinite ammo and Life Siphon for survival and damage mitigation.

3. Duration Increase: 
- Increasing the duration of effects like buffs from her abilities can be critical. This ensures that she can sustain her enhanced states longer, such as Frenzy mode’s damage boost or the defensive buffs from her normal mode.

External Components 
1. Annihilation Auxiliary Power 
2. Annihilation Sensor 
3. Annihilation Memory 
4. Annihilation Processor

From Devourer (Hard), if your conditions are not enough, it is recommended to use the cheap TFD Void Intercept Boost. Use the discount code 'breeze' to enjoy an extra 5% discount on the wide site.

Set Effect 
2 Set 
Skill Duration +5.7%

4 Set 
Firearm ATK increases proportionally to the ratio of Max HP to HP lost, up to +26%. When HP is 50% or lower, MP Recovery-22%,HP Recovery +16.4% for 10s(Cooldown 30s)

The Annihilation set is designed to provide a significant damage boost at the cost of reduced MP recovery, with an added survivability mechanic when at low health. This set can be particularly effective for players who like to play aggressively or for characters who can manage their HP and MP efficiently.

  • The Auxiliary Power piece is the only one that can have HP as a stat
  • The Memory piece is the only one that can have DEF as a sub-stat
  • Other pieces may have elemental resistances as their best defensive stats.

Farming for the perfect stats on Annihilation set pieces can be challenging.

Enhanced Mods for Gley 
Enhanced Mods for Gley - U4GM

Key Types of Mods for Glay 
1. Cooldown Reduction Mods 
2. Duration Increase Mods 
3. Skill Power Mods 
4. HP Management Mods 
5. Critical Hit Mods

Glay's mod should enhance her attack power and duration, Mods need to work in concert with her reactor, components, and other gear elements.

  • Increased Sensory Duration Mod: Extends the duration of Increased Sensory’s effects, allowing for longer periods of enhanced movement and infinite ammo.
  • Life Siphon Power Boost Mod: Increases the damage and healing effect of Life Siphon, enhancing both Glay’s survivability and her offensive presence.
  • Critical Efficiency Mod: Critical Hit Mods are Particularly synergistic with the Blood and Iron skill module, which allows life force generation on critical hits. Mods that increase critical hit chance or damage can enhance both her resource generation and her damage output.

Bunny Best Weapons and Enhanced Mods

Sterile Land is a key area in the early stage of The First Descendant, providing players with various tasks and challenges. You will get the weapons and mods that best match Bunny here, greatly improving Bunny's combat effectiveness. For more information about Bunny's skills, strategies, and battlefield positioning, please read - the Bunny User Guide.

At the end of the story mission, you can get Thunder Cage, which is currently one of the best weapons for Bunny. you can use it to complete all the early quests. Before completing the plot, upgrade the TFD character level and weapons as much as possible. You need to power up to eliminate void bosses and proceed to the next area.

Enhance your weapon modules to maximize DPS, don't worry about module capacity, specific quests in the late game will reward energy activators, allowing further modules. The recommended modules are as follows:

  • Action and reaction
  • Concentration priority
  • Better concentration
  • Better Insight
  • Weak point sight

Bunny Enhancement Module - Tingling Singularity Reactor

Bunny Reactor - U4GM

Thunder Cage mounting 
Reached: Skill Power 160%

Skill Power Boost Ratio 
Electric Skill Power Boost Ratio 0.2x 
Singular Skill Power Boost Ratio 0.2x

How to get Tingling Reactor 
From stunning beauty void intercept boss after you finish all missions in sterile land.

External Components 
- Supernova Auxiliary Power 
- Supernova Sensor 
- Supernova Memory 
- Supernova Processor

2 Set Bonus: Electric Skill Power Modifier +8.6% 
4 Set Bonus: Fusion Skill Power Modifier +12%, and on an Electric Skill Attack upon an enemy inflicted with Electrocution, activates Executioner’s Thunderbolt at the target’s location, dealing additional Electric damage equivalent to 100% of Skill Power Modifier (Cooldown: 2 seconds) at a 50% chance.

The Supernova set is considered a top choice for maximizing electric damage, making it a preferred option for builds centered around electric skills and abilities. When using the Supernova set, applying the electrocution status effect to enemies triggers additional damage effects. This is particularly useful for characters who can easily inflict electrocution, as it increases the total damage output.

Supernova Set Synergy 
It activates additional electric damage effects when an enemy is inflicted with electrocution. This additional damage, known as the "Executioner Thunderbolt," deals electric damage equivalent to a percentage of the character's skill power modifier.

The set increases both the electric skill power modifier and the fusion skill power modifier. However, the primary focus is usually on electric skills, especially for characters like Bunny who utilize electric-based abilities.

For characters using the High-Voltage Mod, the Supernova set complements the increased range and power by adding more damage per target. Players should aim to maximize their electric skill power and skill power modifiers to fully utilize the set's benefits.

Bunny Mobbing Builds 
Bunny's Lightning Emission creates an electric ring around her, dealing damage over time to all enemies within its range. The damage and range of this ability are crucial for effective mobbing. The electricity meter fills as she moves, and this build emphasizes constant movement to maintain high damage output. This includes running, sprinting, and jumping.

Recommended mods 
Skill Expansion and Maximized Range: These mods increase the range of Bunny's abilities, allowing her to affect more enemies simultaneously. This is particularly useful for the Lightning Emission, enhancing its area of effect.

Skill Cost Reduction (Strong Mentality and Other Mods): Reducing the skill cost is essential for maintaining Bunny's abilities during prolonged engagements. This ensures that her Lightning Emission can be used frequently without depleting resources.

MP Recovery and Max MP: Mods that increase Bunny's mana pool and recovery rate are crucial for sustaining her abilities during extended fights. This includes mods like MP Collector, which recovers mana upon defeating enemies.

Electric Skill Power Modifier (Electric Specialist): Increases the power of Bunny's electric-based skills, enhancing overall damage output.

Bunny Mobbing Builds - U4GM

Supporting Skills and Equipment: 
Supernova Set: This component set enhances electric skill power and adds additional damage effects when enemies are inflicted with electrocution. It's ideal for this build due to its synergy with Bunny's electric abilities.

Additional Range and Defense Mods: Mods that provide additional range and defense help Bunny stay effective in various combat scenarios. For example, the "Iron Defense" mod increases Bunny's defense, making her more resilient.

Bunny needs to be constantly moving in this version to maintain the meter and maximize the damage to his skills. This includes sprinting and using her second ability to further charge the meter. Utilizing Bunny's double jump can create shockwaves that deal additional electric damage. This mechanic is useful for hitting enemies above and below Bunny, expanding her effective range.

While primarily focused on mobbing, this build also considers survivability by incorporating defensive mods and focusing on crowd control through the electric ring and other abilities.

Bunny Bossing Builds 
While Bunny's Lightning Emission remains a staple for its consistent damage, this build emphasizes increasing damage output against single targets, Especially the TFD Void Intercept Boss in Hard Mode.

Mod Strategy 
The build utilizes mods and gear that significantly boost Bunny's skill power, ensuring her abilities deal maximum damage. Mods such as "Strong Mentality" and "Brain Mindset" are used to reduce the mana cost of abilities, allowing for sustained usage without quickly depleting resources.

High-Voltage Mod(Ultimate Bunny) 
This Mod changes how Bunny's first and third abilities function. It reduces the number of enemies affected by these abilities to three but increases their power and range. When an enemy is killed, the effect can immediately switch to a new target. The augment also increases skill power and range, making it a strong choice for both mobbing and bossing scenarios.

High-Voltage Mod enhances Bunny's damage output by increasing the skill power and range of her first and third abilities. It is particularly useful in focusing damage on key targets, albeit at the cost of limiting the number of enemies that can be affected simultaneously.

Bunny Bossing Builds - U4GM

Slayer Set: An alternative set that increases skill power and ammo capacity, providing utility and sustaining firepower during longer boss fights.

2-Set Bonus: Increases Firearm ATK by 8.6%. 
4-Set Bonus: Grants a 12% increase to Skill Power Modifier. Additionally, when a skill is used, it has a chance to grant a buff that increases damage dealt for a short duration.

The set increases the maximum amount of general rounds (ammo) that a character can carry. Increases the number of rounds available per magazine, allowing for longer periods of firing before needing to reload.

One of the primary bonuses of the Slayer Set is the significant increase in skill power. This boost enhances the effectiveness of a character's abilities, making them more potent in terms of damage or utility.

Weapon and Gear Synergy 
Thunder Cage: A preferred weapon, providing substantial boosts to skill power when active. The build emphasizes maintaining this weapon to leverage its benefits fully.

Critical Damage and Weak Point Mod: The build incorporates mods that increase critical hit rate and damage, as well as damage against weak points, optimizing Bunny's output during boss encounters.

Maintaining mobility is crucial to keep the electricity meter filled and to avoid boss mechanics.

Bunny's Thunder Cage Build Guide

Important Mods 
- Electric Specialist: Increases electric skill power, making Bunny's electric abilities more potent. 
- Skill Expansion: Improves the range of her abilities, crucial for maximizing area-of-effect damage. 
- Strong Mentality: Reduces skill cost, facilitating sustained use of abilities. 
- Iron Defense: Provides additional defense, making Bunny more durable in combat.

Build Strategy: 
- Electric Meter Management: Utilize mods that reduce skill cost and improve mana recovery to maintain high uptime on abilities. For example, using MP Collector to regain mana on enemy defeat. 
- Mobility: Use Bunny’s mobility to keep moving and charging her electric meter. Combine this with midair maneuvers to hit enemies from different angles and positions. 
- Damage Focus: Concentrate on enhancing Bunny's electric abilities. For instance, her third ability benefits from a high-skill power modifier, so ensure the Thundercage reactor is optimized for this.

Battle strategy: 
- Mobbing: Leverage Bunny’s ability to clear large groups of enemies efficiently. Her third ability creates a ring that deals continuous electric damage, making it ideal for clearing mobs. 
- Bossing: While the build is optimized for ad-clearing, it can still be effective against bosses. The electric damage and ability uptime make Bunny a valuable asset in boss fights.

Component Set Synergy: 
- Executioner Set: This set enhances electric damage and provides additional effects like Executioner Thunderbolt, which deals extra electric damage to enemies. It synergizes well with the Thundercage reactor. 
- Slayer Component Set (Alternative): Provides general skill power boosts and increased ammo capacity. Useful if additional skill power is needed.

Utility and Adaptability: 
- Customize Builds: Adjust mods based on specific combat needs. For instance, increase critical damage or range depending on whether you are facing a large number of enemies or a tough boss. 
- Defensive Enhancements: Incorporate defensive mods if survivability becomes a concern, especially in high-risk scenarios.

For more information, please refer to Thunder Cage 640K DPS Mods

It is recommended to use Nimble Fingers and Skill Extension modules, which can greatly optimize the efficiency of Bunny's skill use and facilitate the rapid upgrade of the character. You can also try Polygenic Antibodies, increased HP, and increased DEF. This can better enhance the character's defense and increase the chance of survival on the battlefield, especially for characters like Bunny who have low defense. It is important to survive in battle.

After the module capacity is increased, the following modules are recommended:

  • Shock punch
  • Power increase
  • Technician
  • Hp amplification
  • Mp collector

Tips: 
Status effect modules only affect a weapon with the status on it (eg toxic/chill/etc) and can only be boosted by a toxic module booster.

 

Sharen Best Weapons and Enhanced Mods

For more information about Sharen's skills, strategies, and battlefield positioning, please read - the Sharen User Guide.

Sharen Enhancement Module

TFD Descendant Weapon Best Mod Guide - U4GM

Dual Claw 
- Modifies the Charged Sub Attack. 
- Use a Dual Claw to attack when performing a Charged Sub Attack. 
- As the Enhancement Level increases, MaxModule Capacity increases. (Currently +6).

Focus on Electric 
- Electric Skill Power +58.5%, Skill Cooldown-6.1%. 
- Pair the Focus on Electric with other modules or gear that complement electric damage, such as modules that increase critical hit rates or speed up ability cooldowns, to create powerful combo effects.

lron Defense 
- DEF +89.8%, Skill Power Modifier +12.7% 
- To fortify characters, allowing them to withstand heavier attacks and endure longer in battle, particularly in frontline roles.

TFD Descendant Weapon Best Mod Guide - U4GM

Fusion Specialist 
- Fusion Skill Power Modifier +57.7%

Nimble Fingers 
- Skill Cooldown -25.6%

Stim Accelerant 
- Max HP +32.9%, Max MP -4.5%

Tamer 
Tamer is the best gun for Sharen and the gun with the highest DPS. Although its rate of fire is low, its power is huge. You can stack a lot of DPS, allowing you to complete various tasks easily.

TFD Descendant Weapon Best Mod Guide - U4GM

Another reason to choose Tamer is that its ammunition is very easy to obtain. It uses white ammunition, which is the most frequently dropped ammunition in the game, followed by green and orange. The most difficult to obtain is purple ammunition. When choosing a weapon, one needs to consider this factor.

 

Ajax Best Weapons and Enhanced Mods

The following Ajax build enables players to easily complete TFD Void Intercept Boost. Facing different bosses, you need to replace the corresponding elemental modules, and the Malachite slot is given priority.

For more information about Ajax's skills, strategies, and battlefield positioning, please read - the Ajax User Guide.

External Components 
Annihilation Set - Available through Devourer, also applies to Glay.

TFD Descendant Weapon Best Mod Guide - U4GM
Annihilation Auxiliary PowerAnnihilation Sensor
DEF 3512DEF 4683
Fire Resistance 3130Chill Resistance 1611
Module Drop Rate Increase Modifier 0.168xMax MP 135

TFD Descendant Weapon Best Mod Guide - U4GM

Annihilation MemoryAnnihilation Processor
Max HP 646Max HP 484
DEF 2247Equipment Drop Rate Increase Modifier 0.176x
Electric Resistance 2599Toxin Resistance 3608

Annihilation Set Effect 
2 Set 
Skill Duration +5.7%

4 Set 
Firearm ATK increases proportionally to the ratio of Max HP to HP lost, up to +26% 
When HP is 50% or lower, MP Recovery-22%, HP Recovery +16.4% for 10s(cooldown 30s)

- This is particularly beneficial for Ajax as it enhances skill duration, which is useful for extending the effects of his abilities. 
- It also boosts firearm damage proportional to his maximum HP, which synergizes well with his build that focuses on high HP for both defense and offensive power.

Affixes on Components 
- Fire Resistance and Module Drop Rate Increase: These enhance Ajax's survivability against fire-based attacks and improve the efficiency of his farming capabilities. 
- Shell Resistance and Max MP: Important for boosting his resistance against specific attacks and increasing his mana pool to allow for more frequent skill usage. 
- Defense and Electric Resistance: These enhance his overall durability and resilience against electric attacks, crucial for facing enemies with this damage type. 
- Equipment Drop Rate Increase and Toxin Resistance: These substats not only make him more resistant to toxins but also increase the likelihood of obtaining better equipment from battles.

Resistance Coverage 
- Ajax's components cover a broad range of resistances including toxic, electric, chill, and fire. This comprehensive coverage is designed to ensure he can remain effective and durable across various enemy types and environmental hazards.

The advantages of Annihilation Set 
1. One of the primary benefits of the Annihilation Set is the increased duration of skills. This is particularly advantageous for Ajax, as it allows his defensive and offensive skills, like the Orbit Barrier and Hypercube, to last longer in combat, providing sustained support and damage over time.

2. The set enhances Ajax’s firearm attack by adding extra damage that scales with his maximum HP. This feature synergizes exceptionally well with Ajax’s build, which emphasizes high HP for increased survivability. It makes him more effective in taking down bosses and tougher enemies, as his damage output increases with his tankiness.

3. The Annihilation Set supports Ajax’s ability to switch between roles—whether he needs to be more offensive or defensive in various gameplay situations. This flexibility is crucial in team settings and when facing different types of enemies, ensuring that Ajax can adapt to the needs of the fight.

4. When paired with specific weapons, reactors, and other components, the Annihilation Set can unlock additional synergistic effects.

5. The set may also include secondary benefits that assist in farming efficiency, such as increased drop rates for equipment or enhancements that improve Ajax’s capacity to handle multiple enemies.

Temar Build for Ajax 
The build shifts from a critical hit focus to a weak point focus, This approach is fundamentally better for maximizing damage output in high-stakes battles.

TFD Descendant Weapon Best Mod Guide - U4GM

DPS 170910 
Weapon Change Speed 15.9% 
weak Point Damage 10.7% 
Firearm ATK 12.2% 
Fire ATK 1601

Mods Build 
TFD Descendant Weapon Best Mod Guide - U4GM

Weak Point DetectionAction and Reaction
Weak Point Damage +20%, Firearm ATK+1%Firearm ATK +61%, Recoil +20%
TFD Descendant Weapon Best Mod Guide - U4GM
Rifling ReinforcementWeak Point SightChill Enhancement
Firearm ATK +32%Weak Point Damage +35%Adds Chill ATK equal to 30% of Firearm ATK

Module synergy 
1. Weak Point Detection: Enhances Ajax’s ability to identify and target the weak points of enemies, increasing damage dealt to these critical areas.

2. Action and Reaction Rifling: Possibly increases the damage or impact of firing after performing certain actions, like dodging or using other skills. 

3. Weak Point Sight: Further amplifies the effectiveness of attacks on weak points, likely by increasing accuracy or damage.

Stat Priorities on the Weapon 
1. Firearm Attack: Primary stat focus, enhancing the basic attack damage output. 
2. Weak Point: Specialized stat focus, enhancing damage against specific vulnerable spots on enemies. 
3. Elemental Damage (Optional): Depending on the enemy's weaknesses, different elemental modules can be used, and modules with Malachite are given priority.

For players who focus on high-level boss battles, Ajax's Tamer build is a good choice, It is optimized for boss fights, where targeting weak points can significantly decrease the battle duration and increase efficiency, focusing on precise, powerful strikes.

Materialized Mechanic Reactor

TFD Descendant Weapon Best Mod Guide - U4GM

- This reactor is tailored to enhance Ajax’s damage and skill usage. It includes bonuses for non-attribute skill power and reduces skill cooldowns, enabling more frequent use of his abilities. 
- It's ideally configured to amplify Ajax's technical skills, which are significant for his role as both a damage dealer and support character. 
- Prioritize stats such as tech power, non-attribute skill bonuses, and cooldown reduction.

Stat Prioritization 
Defense = HP > Firearm Attack > Skill Power

Gold and Kper fragments

Enhancing modules requires you to have a lot of gold and fragments, which can be dropped by enemies or obtained by dismantling modified parts. Dismantle all duplicate modules so that you have space to store new loot.

Kingston Mission is recommended for getting a lot of gold. Kper fragments can be obtained through Albion Mission, but here I recommend Large Nuclear Reactor Mission in Sterile Land, which is the best place to get Kper fragments and it is also the best XP farm. You can also think of it as the best loot cave. It is recommended to complete it alone so that you can get the most materials to enhance attack power.

Large Nuclear Reactor Mission 
TFD Descendant Weapon Best Mod Guide - U4GM

Just teleport to the outpost and head to the specified location in the picture. The mission is very simple and you can complete it alone. Not only will the enemies drop Kyper fragments, but you can also get fragments by dismantling modules.

For example, Hawkeye Module, you can dismantle it to get fragments, which can be converted into reactor modules.

The materials you get here can be stacked up. After reaching a certain amount, you can make components such as Phase Exchanger, which are key components for upgrading weapon levels and can better enhance weapon DPS.