We recommend the best option for each Descendant and deliver a guide to character reactors and their enhancement.

Reactors are vital components in The First Descendant, enhancing your character’s abilities and performance. When you understand how reactors work, match them to your Descendant’s skills, and enhance them effectively, you may easily optimize your gameplay experience and tackle tougher challenges with any character.

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Reactors Explained

Reactors are essential character enhancements that boost your descendant’s abilities, stats, and overall performance. The first section of this guide will explain what reactors are, how they work for each character, how to enhance them, and why enhancement is beneficial for your gameplay in The First Descendant.

Reactors are powerful items designed to enhance the skills and performance of your Descendant (character). Also, each reactor is tailored to support a specific skill type, which means they must match your Descendant’s skills to provide the maximum benefit.

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How Reactors Work

Skill Type Matching: Every Descendant has a particular type of skills, and each reactor is designed to enhance a specific skill type. However, to use it, the reactor must match your Descendant’s skill type. you’re able to view your Descendant’s skill type in the skill tooltip (Descendant (H) > Descendant skill tooltip). Check the reactor’s item tooltip to confirm that it supports your Descendant’s skill type. Moreover, ensure your reactors are regularly checked and upgraded to keep your Descendant at peak performance.

Optimal Condition: Also, each reactor has an “optimal condition” that must be met to activate its power. This condition typically requires equipping a specific weapon type. Therefore, ensure that this weapon type is our primary weapon. Consequently, it will help you activate the bonuses more often, granting unique effects that can give a character to specific playstyles and strategies.

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Optimization Condition:Similarly,each reactor comes with an Optimization Condition, which, if met, grants an even greater boost to skill power. These conditions usually depend on whether the weapon is equipped or the Descendant being used. you may check if the Optimization Condition is met in the reactor’s tooltip. If the condition is met, it will be checked; if not, it will be shown in red.

Random Bonuses: At the bottom of the Reactor tooltip, you can also see the random bonuses they can drop with. You can farm for them and look for reactors with bonuses that will complement your build. For example, the reactor image above shows a small boost to the HP Heal Modifier and Fire Skill Power Boost Ratio. It’s a small bonus, but if you want to fully maximize your results, you should take it into consideration.

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How to Enhance Reactors in The First Descendant?

Enhancing reactors is a critical aspect of boosting their effectiveness. It provides several benefits that can significantly impact your gameplay. Additionally, enhancing reactors boosts the power of your Descendant’s skills, making them more effective in combat. Reactors provide better performance boosts with higher enhancement levels, so you and your Descendant can handle more challenging content and enemies. As a result, you can adjust your Descendant’s abilities to suit your preferred playstyle, whether it’s focusing on offense, defense, or utility.

Here’s how you can enhance your reactors:

Enhancement Levels

Reactors have different maximum enhancement levels based on their tier. For instance, common-tier reactors can be enhanced up to Level 2, while ultimate-tier reactors can be enhanced up to Level 8.

The current Enhancement Level of a reactor is shown in the top right corner of its icon. Each level fills an empty slot/deltoid in the icon, making it easy to track your reactor’s enhancement progress.

Best Reactor for Each Character - Reactors and Enhancement Guide in The First Descendant

Best Method to Farm Reactors in The First Descendant

Void Intercept Battles are the best activity too far reactors. They are quick to do and available on normal and hard difficulties, where you fight against varius bosses. Additionally, they drop Amorphous Materials if you need them to unlock other descendants. However, their biggest advantage is that they drop High-quality reactors, so you may quickly find powerful additions to your setup.

Top 5 Tips to Beat Void Intercept Battles to Farm Reactors Quick

Here are the top 5 tips and tricks to succeed in Void Intercept Battles and get high-quality reactors quickly:

Best Reactors for Each Descendant (Character)

The best reactors for each Descendant will depend on their character skills and the weapon you want to use. Additionally, reactor names can give you an idea of what they are good at. For example, Burning will be good for descendants who deal burning damage. Here is a list of reactors with specific damage types:

We picked the best Reactor for each character based on the top reactor, reactor enhancement, skills, and weapon combination, which we included in the optimization condition for each Descendant’s guide section.

Materialized Mechanics is the best reactor for an Ajax build that gives you a boost in Non-Attribute and Tech. Additionally, you want to prioritize reactors with additional bonuses for Tech and Non-Attribute skill power boost ratios to buff the effectiveness of our skills. you may read more about thebest setups for Ajax in the Build Guide.

Below is our recommendation for the best Ajax reactors:

Burning Phase is the best reactor for a Blair build in the First Descendant because it boosts your Fire and Dimension skills.Fire is your descendant attribute, and Dimension increases Extinguish, Burn Taste, and Deadly Cuisine.  The second choice is Burning Singularity, which buffs the Fire and Singularity type and is an effective extinguishing skill. You can read more about thebest setups for Blair in the Build Guide.

Below is our recommendation for the best Blair reactors:

The best reactors give you a boost in skill power and Electric and Singular for add clear, and Electric and Fusion for boss damage (singularity reactor). Electric is your primary damage source, Singular affects your AOE abilities, and Fusion is your single target burn skill, Maximum Power. Regardless, you want Electric damage as your primary and either singular or fusion with weapon optimization condition Submachine gun. you’re able to read more about thebest setups for Bunny in the Build Guide.

Below is our recommendation for the best Bunny reactors:

Burning Mechanics is the best reactor for the Esiemo Build Guide in the First Descendant. This gives a boost in Fire and Tech Skill Boosts to enhance our bombs’ base damage. Additionally, you want to prioritize reactors that have additional bonuses for Tech and Fire skill power boost ratios. You can read more about thebest setups for Enzo in the Build Guide.

Below is our recommendation for the best Esiemo reactors:

The best reactor for Enzo is Materialized Singularity because it boosts Non-Attribute skills, specifically Start Supply and Perfect Support. The second option is the Materialized Phase, which boosts non-attribute and Dimension. This will increase the number of Explosive Drones and Enhanced Combat suits. The priority is to buff the Non-Attribute skill first, then either Singular or Dimension based on support or damage. Lastly, ensure to equip the right weapon to activate the bonuses. You can read more about thebest setups for Esiemo in the Build Guide.

Toxic Mechanic is the best reactor for a Freyna build in the First Descendant because it boosts your Toxic and Tech skills.Toxic is your descendant attribute, and Tech increases Toxic Trauma, Decomposed Poison, and Venomous Baptism skill effectiveness.  The second choice is Toxic Phase, which buffs Toxic and Dimension type, effective Defensive Mechanism skill. you may read more about thebest setups for Freyna in the Build Guide.

Below is our recommendation for the best Freyna reactors:

Materialized Singularity is the best reactor for a Gley build in the First Descendant because it boosts the effectiveness of your non-attribute and singular skills.Non-Attribute is your descendant attribute, and Singularity increases Frenzied and Increased Sensory skill effectiveness.  The second choice is Materialized Phase, which buffs Non-Attribute and Dimension type, Life Siphon, and Massacre skills. You can read more about thebest setups for Gley in the Build Guide.

Below is our recommendation for the best Gley reactors:

The best reactors for a Jayber build give you a boost Non-Attribute and Dimension (Assault Turret, Medical Turret). This will help optimize your skills and damage. The second choice are Skill Power and Sub Attack Power. you may read more about thebest setups for Jayber in the Build Guide.

Materialized Mixture is the best reactor for a Kyle build in the First Descendant because it boosts your Non-Attribute and Dimension skills. Non-attribute is your descendant attribute, and Dimension increases Magnetic Bulwark and Magnetic Spurt. The second choice is Materialized Mixture, which buffs Non-Attribute and Fusion type, effective Dash and Superconductivity Thrusters skills. you may read more about thebest setups for Kyle in the Build Guide.

Below is our recommendation for the best Kyle reactors:

Burning Mechanics is the best reactor for a Lepic build in the First Descendant because it buffs your Fire and Tech type skills.Fire is your descendant attribute and tech buffs Grenade and Overkill skill.  The second choice is Burning Mechanics, which buffs Fire and Singular type, effective Overclock and Traction Grenade skills. You can read more about thebest setups for Lepic in the Build Guide.

Below is our recommendation for the best Lepic reactors:

The best reactors for a Sharen build give you a boost in Fusion and Electric. A secondary choice would be reactors with Skill Power and Sub Attack Power. Lastly, look for Dimension or Skill Critical Hit damage for all-around gameplay. As a result, the best options will be a Tingling Mixture reactor with a boost to Electric and Fusion type or a Tingling Phase reactor with a bonus to Electric and Dimension type. You can read more about thebest setups for Sharen in the Build Guide.

Materialized Mixture is the best reactor for a Valby build in the First Descendant because it boosts your Non-Attribute and Fusion skills. Non-attributes are your descendant attributes, and fusion increases Bubblet Bullet and Laundry. The second choice is the Materilized Phase, which buffs Non-Attribute and Dimension type, effective Plop Plop, and Laundry skills. you’re able to read more about thebest setups for Valby in the Build Guide.

Below is our recommendation for the best Valby reactors:

Frozen Mechanics is the best reactor for a Viessa build in the First Descendant because it buffs your Chill and Tech skill combinations.Chill is your descendant attribute, and tech buffs Ice Sphere are passive and Blizzard’s ultimate ability.  The second choice is Frozen Mixture, which buffs Chill and Fusion type damage, effective Frost Shard, Frost Road, and Cold Snap skills. You can read more about thebest setups for Viessa in the Build Guide.

Below is our recommendation for the best Viessa reactors:

Materialized MixtureorMaterialized Singularityare the best reactors for Yujin. First, it offers a boost to Non-Attribute and Fusion types, and second, a bonus to Non-Attribute and Singular types. When choosing a reactor for him, look for one that buffs Fusion and Non-Attribute skills.

Please keep in mind that the game is new, and we keep updating our guides and builds with new information. We will add details to this guide, too, when we have more information available. Last updated: 7th July 2024.

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