Descendants or Classes in The First Descendant can be equipped with special Rare Skill Modules. Unlike common ones, these can change the effects and attributes of a character’s passive and active skills. Owning and using them definitely can open up a variety of new playstyles and builds. Let’s see how these Rare Skill Modules affect the skills and where to find them in this The First Descendant guide.
Ajax

| Module Name | Effect | How to Get |
|---|---|---|
| Body Enhancement | – Event Horizon doesn’t give Void Energy anymore – Increases DEF and Energy Shield proportionally to Max HP | Executioner Intercept Mission |
| Matrix Recomputation | Modifies Expulsion to grant a buff that helps allies survive | – Any Intercept Mission – Drops from Elite and Commander enemies |
| Void Barrier | Orbit Barrier can be moved and always reflects damage back to enemies | Any Intercept Mission |
| Void Charge | Modifies Void Walk’s damage to increase proportionally to DEF | Any Intercept Mission |
Blair
| Module Name | Effect | How to Get |
|---|---|---|
| Backdraft | Change Extinguish effect: – Flame Zone absorption significantly increases Weak Point ATK instead of DEF | DeadBride Intercept Mission |
| Classic Chef | Change Pitmaster effect: – Modifies the increases to Firearm and Skill Critical Hit Rate to 5 based on the number of Flame Zone – Using Deadly Cuisine increases the number of Flame Zones created to 4 | Pyromaniac Intercept Mission |
| Incendiary Bomb | Change Blaze Up effect: – Throws a projectile forward that spawns a Flame Zone where it lands | Devourer Intercept Mission |
| Superconductor | Change Deadly Cuisine effect: – Significantly increases the damage of the Giant Fireball – Small Fireballs or Flame Zones won’t appear when the Giant Fireball explodes | Obstructer Intercept Mission |
Bunny
| Module Name | Effect | How to Get |
|---|---|---|
| Bionic Fuel | Speed of Light now consume HP instead of MP | DeadBride Intercept Mission |
| Electric Condense | Maximum Power deals huge amount of damage once | – Any Intercept Mission – Drops from Elite and Commander enemies |
| Electric Transition | Speed of Light recovers Energy Shield in proportion to the distance traveled | Any Intercept Mission |
| Superconductor | Electrocution reduces enemy’s ATK | GraveWalker Intercept Mission |
Freyna
| Module Name | Effect | How to Get |
|---|---|---|
| Contagion | When killing a Room 0 Trauma-inflicted enemy, creates a Poison pool | Executioner Intercept Mission |
| Neurotoxin Synthesis | Changes Room 0 Trauma effect: – Does not spread Poison – Adds ATK reduction and Weaken Regeneration | Event exclusive |
| Toxic Stimulation | Grants Plague Bodyarmor to surrounding allies during Defense Mechanism | Obstructer Intercept Mission |
| Venom Synthesis | Putrid Venom now leaves behind a Toxic Footprint after every step that inflicts Poison on enemies | Pyromaniac Intercept Mission |
Gley
| Module Name | Effect | How to Get |
|---|---|---|
| Blood and Iron | Life Orbs can no longer be acquired with the Thirst effect. Power of Life can be obtained when attacks land Firearm or Skill Critical Hits. | Obstructer Intercept Mission |
| Massive Sanguification | Life Siphon can absorb Life Orbs during Non-Frenzied mode | DeadBride Intercept Mission |
| Predator Instinct | Firearm ATK increase while firing a Firearm in Frenzied mode | Pyromaniac Intercept Mission |
| Supersense | Changed the effect of Frenzied mode’s Maximize Lethality during Increased Sensory. Fire Rate is fixed but increase Weak Point ATK and Duration | Obstructer Intercept Mission |
Jayber
| Module Name | Effect | How to Get |
|---|---|---|
| Attacking Compulsion | Change Healing Turret effect: – When using skill summons an Assault Turret | Obstructer Intercept Mission |
| Immediate Purge Code | Change Reactivate effect: – Explodes all turrets that deals damage when using skill – Leaves Electric area-of-effect that deals continuous damage where the turrets exploded | Devourer Intercept Mission |
| Medical Compulsion | Change Reactivate effect: – Explodes all turrets that deal damage when using skill – Leaves Electric area-of-effect that deals continuous damage where the turrets exploded | Change Reactivate effect: – Explodes all turrets that deal damage when using skill – Leaves Electric area-of-effect that deals continuous damage where the turrets exploded |
| Regenerative Breaking | Removes Close Call’s effect. Has a chance to recover MP instead when using skill | – Any Intercept Mission – Drops from Elite and Commander enemies |
Lepic
| Module Name | Effect | How to Get |
|---|---|---|
| Increased Gain | – MP is no longer consumed while Overkill is active – Reduces MP when attacking with Overkill – Recover MP when a critical hit occurs on Overkill | Any Intercept Mission |
| Nerve Infiltration | Overclock no longer inflicts Burn but Weaken Regeneration instead | GraveWalker Intercept Mission |
| Powerunit Change | Overclock no longer increases the Skill Power Modifier. But Firearm ATK is increased instead | Any Intercept Mission |
| Regenerative Breaking | Removes Close Call’s effect. Has a chance to recover MP instead when using skill | – Any Intercept Mission – Drops from Elite and Commander enemies |
Ultimate Lepic

| Module Name | Effect | How to Get |
|---|---|---|
| Explosive Stacks | – Grenade now can be charged up to 3 times. – Grenade is charged after using a certain amount of ammo | DeadBride Intercept Mission |
| Firearm Master | – Removes Close Call’s effect – Reloading a weapon increases Skill Range – Changing weapon increases Skill Power Modifier | Obstructer Intercept Mission |
Sharen
| Module Name | Effect | How to Get |
|---|---|---|
| Battlesuit Melting Nuts | Impact Rounds can stack and reduce the enemy’s DEF instead of stunning them | – Any Intercept Mission – Drops from Elite and Commander enemies |
| Overcharged Edge | Active Camouflage consumes Energy Shields instead of MP. Ambush damage increases by the amount of Energy Shields consumed | Pyromaniac Intercept Mission |
| Release Cutting Force | Cutoff Beam can be unleashed as Sword Aura | DeadBride Intercept Mission |
| Void Domination | Flash Shortsword’s targeting range and speed are increased | Executioner Intercept Mission |
Valby
| Module Name | Effect | How to Get |
|---|---|---|
| Singing Water | Changes Laundry Bomb effect: – Spawns a Seduction of Water where the Launcher’s bullet explodes – Seduction of Water taunts surrounding enemies and inflicts Laundry until destroyed | Event exclusive |
| Supply Moisture | Changes Laundry Bomb effect: – Increases Attribute Status Effect Trigger Rate when using a Firearm on the water – No longer reduces MP cost | Pyromaniac Intercept Mission |
| Tidal Wave | Changes Clean Up effect: – No longer leaves watery trails when moving – Inflicts skill damage when moving through enemies | Obstructer Intercept Mission |
| Water Play | Changes Bubble Bullet effect: – Creates a rectangular-shaped pool of water in front of you | DeadBride Intercept Mission |
Viessa
| Module Name | Effect | How to Get |
|---|---|---|
| Cold-Bloodedness | – When using Frost Road, increases Skill Power Modifier – Decreases MP Cost and Skill Cooldown – Can’t create Frost Road while moving | Devourer Intercept Mission |
| Cold Snap Watch | – When using skill, inflict Ice Needle instead of Ice Shackle – Ice Needle: Continuous damage to the target. Damage increases as it stacks – When Ice Needle reaches a certain number of stacks, triggers passive skill | – Any Intercept Mission – Drops from Elite and Commander enemies |
| Glacial Cloud | Throws a projectile forward and spawns a Blizzard where it lands | Any Intercept Mission |
| Hypothermy | – When using skill, inflict Ice Needle instead of Ice Shackle. – Ice Needle: Continuous damage to the target. Damage increases as it stacks. – When Ice Needle reaches a certain number of stacks, triggers passive skill | Any Intercept Mission |
Ultimate Viessa

| Module Name | Effect | How to Get |
|---|---|---|
| Absolute-Zero | – No longer inflicts Ice Shackle when using skill – Inflicts Frostbite when the skill lands a Critical Hit – Frostbite triggers Ice Sphere | Event exclusive |
| Cold Cohesion | Increases the number of Ice Spheres to 5 | Pyromaniac Intercept Mission |















