★ 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 | ETA-0
☆ New Void Interception: Death Stalker
☆ New Weapon: Frost Watcher
Iron Defense is a Descendant module in The First Descendant. Read on to learn how to get Iron Defense, its effects, and more!
| Agna Desert (Hard) - Abyssal Void Fusion Reactor - Agna Desert Vermillion Waste Complete |
| Agna Desert (Hard) - Caligo Ossuary Mission Monster |
| Agna Desert (Hard) - The Asylum Mission Monster |
| Agna Desert (Hard) - Void Fusion Reactor - Agna Desert Vermillion Waste Mission monster |
| Agna Desert (Normal) - Abandoned Reconstruction Site Mission Monster |
| Agna Desert (Normal) - Baggage Transport Base Mission Monster |
| Agna Desert (Normal) - Caligo Ossuary Mission Monster |
| Agna Desert (Normal) - Commanding Ground Mission Monster |
| Agna Desert (Normal) - Excavation Team Directional Radar Mission Monster |
| Agna Desert (Normal) - Heavy Equipment Entry Path Mission Monster |
| Agna Desert (Normal) - Kuiper Depot Mission Monster |
| Agna Desert (Normal) - Mining Beacon Mission Monster |
| Agna Desert (Normal) - Miragestone: Vulgus Strategic Outpost Mission Monster |
| Agna Desert (Normal) - Ossuary Mission Monster |
| Agna Desert (Normal) - Outpost Workshop Mission Monster |
| Agna Desert (Normal) - Previous Construct Team Quarters Mission Monster |
| Agna Desert (Normal) - Red Sphere Mission Monster |
| Agna Desert (Normal) - Rock Cave Base Mission Monster |
| Agna Desert (Normal) - Storage: Vulgus Strategic Outpost Mission Monster |
| Agna Desert (Normal) - Surveillance Location Mission Monster |
| Agna Desert (Normal) - The Asylum Mission Monster |
| Agna Desert (Normal) - Vermillion Waste: Vulgus Strategic Outpost Mission Monster |
| Agna Desert (Normal) - Void Fusion Reactor - Agna Desert Miragestone Deposit Mission Monster |
| Agna Desert (Normal) - Void Fusion Reactor - Agna Desert The Storage Mission Monster |
| Agna Desert (Normal) - Void Fusion Reactor - Agna Desert Vermillion Waste Complete |
| Hagios (Hard) - Dune Base: Vulgus Strategic Outpost Complete |
| Hagios (Hard) - Old Mystery Mission Monster |
| Hagios (Hard) - The Haven Mission Monster |
| Hagios (Normal) - Ally Retreat Route Mission Monster |
| Hagios (Normal) - Ancient Quantum Facility Mission Monster |
| Hagios (Normal) - Antiaircraft Defensive Position Mission Monster |
| Hagios (Normal) - Broadband Fleet Beacon Mission Monster |
| Hagios (Normal) - Cargo Management Zone Mission Monster |
| Hagios (Normal) - Crimson Contaminated Area Mission Monster |
| Hagios (Normal) - Deep Digger Mission Monster |
| Hagios (Normal) - Dune Base: Vulgus Strategic Outpost Complete |
| Hagios (Normal) - Dune Base: Vulgus Strategic Outpost Mission Monster |
| Hagios (Normal) - Forward Base: Vulgus Strategic Outpost Mission Monster |
| Hagios (Normal) - Large Supply Transport Point Mission Monster |
| Hagios (Normal) - Old Mystery Mission Monster |
| Hagios (Normal) - Ransacked Village Mission Monster |
| Hagios (Normal) - Ruins Guard Facility Mission Monster |
| Hagios (Normal) - Ruins Modification Base Mission Monster |
| Hagios (Normal) - Tethered Energy Position Mission Monster |
| Hagios (Normal) - The Corrupted Zone: Vulgus Strategic Outpost Mission Monster |
| Hagios (Normal) - The Haven Mission Monster |
| Hagios (Normal) - The Passage to the Ruins Mission Monster |
| Hagios (Normal) - Vulgus Blockade Mission Monster |
| Intercept Battle: (Hard) Obstructer |
| 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. |
| Iron Defense Basic Info | |||
|---|---|---|---|
 Iron Defense
|
Capacity | 6 | |
| Socket | Rutile | ||
| Class |  Descendant |
||
| Effects | |||
| DEF +X%, Skill Power Modifier +X% | |||
| Lvl | Effect | Capacity | Kuiper Shard | Gold |
|---|---|---|---|---|
| 0 | DEF +22%, Skill Power Modifier +3% | 6 | - | - |
| 1 | DEF +25.2%, Skill Power Modifier +3.5% | 7 | 600 | 6000 |
| 2 | DEF +28.7%, Skill Power Modifier +4% | 8 | 1800 | 18000 |
| 3 | DEF +33.2%, Skill Power Modifier +4.6% | 9 | 4000 | 40000 |
| 4 | DEF +38.5%, Skill Power Modifier +5.4% | 10 | 8000 | 80000 |
| 5 | DEF +44.5%, Skill Power Modifier +6.2% | 11 | 14800 | 148000 |
| 6 | DEF +51.8%, Skill Power Modifier +7.3% | 12 | 26200 | 262000 |
| 7 | DEF +59.4%, Skill Power Modifier +8.3% | 13 | 45200 | 452000 |
| 8 | DEF +68%, Skill Power Modifier +9.6% | 14 | 76200 | 762000 |
| 9 | DEF +78.1%, Skill Power Modifier +11% | 15 | 126200 | 1262000 |
| 10 | DEF +89.8%, Skill Power Modifier +12.7% | 16 | 206200 | 2062000 |
| Descendant Modules | Weapon Modules |
Iron Defense Module
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