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★ Beginner's Guide and Advanced Tips and Tricks
★ The First Descendant Roadmap
★ Season 1 | New Update
★ New Characters: Hailey and Ultimate Freyna
☆ Season Guides: Battle Pass | Invasion Guide
☆ New Weapon: EXCAVA
Skill Extension is a Descendant module in The First Descendant. Read on to learn how to get Skill Extension, its effects, and more!
| Kingston - Abandoned Magister Lab Target Vulgus |
| Sterile Land (Normal) - Kuiper Mine Complete |
| White-night Gulch (Hard) - Bio-Lab Mission Monster |
| White-night Gulch (Hard) - Mystery's End Mission Monster |
| White-night Gulch (Hard) - Mystery's End Mission Monster |
| White-night Gulch (Hard) - Upper Hatchery Complete |
| White-night Gulch (Normal) - Altar Mission Monster |
| White-night Gulch (Normal) - Ancient Transmission Detection Facility Mission Monster |
| White-night Gulch (Normal) - Bio-Lab Mission Monster |
| White-night Gulch (Normal) - Border Line of Truth Mission Monster |
| White-night Gulch (Normal) - Cave Rally Point Mission Monster |
| White-night Gulch (Normal) - Decoy Operation Zone Mission Monster |
| White-night Gulch (Normal) - Deployment Area of the Order’s Forces Mission Monster |
| White-night Gulch (Normal) - Eye of Truth Mission Monster |
| White-night Gulch (Normal) - Forgotten Comms Device Mission Monster |
| White-night Gulch (Normal) - Fortress Control Facility Mission Monster |
| White-night Gulch (Normal) - Fortress Courtyard Mission Monster |
| White-night Gulch (Normal) - Fortress Outskirts Mission Monster |
| White-night Gulch (Normal) - Hatchery: Vulgus Strategic Outpost Mission Monster |
| White-night Gulch (Normal) - Lower Hatchery Mission Monster |
| White-night Gulch (Normal) - Mystery's End Mission Monster |
| White-night Gulch (Normal) - Order Supply Warehouse Mission Monster |
| White-night Gulch (Normal) - Order's Patrol Beat Mission Monster |
| White-night Gulch (Normal) - Order's Veil Mission Monster |
| White-night Gulch (Normal) - Order’s Occupied Facility Mission Monster |
| White-night Gulch (Normal) - Shipment Base: Vulgus Strategic Outpost Mission Monster |
| White-night Gulch (Normal) - The Mountaintops: Vulgus Strategic Outpost Mission Monster |
| White-night Gulch (Normal) - Triumphal Arch Mission Monster |
| White-night Gulch (Normal) - Upper Hatchery Complete |
| White-night Gulch (Normal) - Upper Hatchery Mission Monster |
| White-night Gulch (Normal) - Void Fusion Reactor - White-night Gulch Mountaintops Mission Monster |
| White-night Gulch (Normal) - Water-cooling Recording Device Mission Monster |
| Legend |
|---|
|
・Mission Monster - Any of the enemies encountered in the mission can drop the module. ・Complete - The module can be received after completing the mission. ・Amorphous Material Pattern: XXX Required - Choose the Amorphous Material Pattern after defeating the Colossi in an Intercept Battle. ・Descendant Required - Open the Encrypted Vault using the required descendant. ・Intercept Battle - Defeat the indicated Void Intercept Boss. |
| Skill Extension Basic Info | |||
|---|---|---|---|
 Skill Extension
|
Capacity | 5 | |
| Socket | Rutile | ||
| Class |  Descendant |
||
| Effects | |||
| Skill Duration +X%, applies only to certain skills for each Descendant | |||
| Lvl | Effect | Capacity | Kuiper Shard | Gold |
|---|---|---|---|---|
| 0 | Skill Duration +9%, applies only to certain skills for each Descendant | 5 | - | - |
| 1 | Skill Duration +10.3%, applies only to certain skills for each Descendant | 6 | 300 | 3000 |
| 2 | Skill Duration +11.7%, applies only to certain skills for each Descendant | 7 | 900 | 9000 |
| 3 | Skill Duration +13.5%, applies only to certain skills for each Descendant | 8 | 2000 | 20000 |
| 4 | Skill Duration +15.7%, applies only to certain skills for each Descendant | 9 | 4000 | 40000 |
| 5 | Skill Duration +18.1%, applies only to certain skills for each Descendant | 10 | 7400 | 74000 |
| 6 | Skill Duration +21.1%, applies only to certain skills for each Descendant | 11 | 13100 | 131000 |
| 7 | Skill Duration +24.2%, applies only to certain skills for each Descendant | 12 | 22600 | 226000 |
| 8 | Skill Duration +27.7%, applies only to certain skills for each Descendant | 13 | 38100 | 381000 |
| 9 | Skill Duration +31.8%, applies only to certain skills for each Descendant | 14 | 63100 | 631000 |
| 10 | Skill Duration +36.5%, applies only to certain skills for each Descendant | 15 | 103100 | 1031000 |
| Descendant Modules | Weapon Modules |
Skill Extension Module
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