The First Descendant

An Iron Will Module

Beginner's Guide and Advanced Tips and Tricks
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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

An Iron Will is a Descendant module in The First Descendant. Read on to learn how to get An Iron Will, its effects, and more!

How to Get An Iron Will

Agna Desert (Hard) - Caligo Ossuary Mission Monster
Agna Desert (Hard) - The Asylum Mission Monster
Agna Desert (Hard) - Vermillion Waste: Vulgus Strategic Outpost Complete
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) - 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) - Vermillion Waste: Vulgus Strategic Outpost Complete
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 Mission monster
Echo Swamp (Hard) - Abandoned Refinery Unit Complete
Echo Swamp (Hard) - Seed Vault Mission Monster
Echo Swamp (Hard) - The Chapel Mission Monster
Echo Swamp (Normal) - Abandoned Zone Mission Monster
Echo Swamp (Normal) - Arche Motion Sensor Mission Monster
Echo Swamp (Normal) - Derelict Covert: Vulgus Strategic Outpost Mission Monster
Echo Swamp (Normal) - Environment Contamination Zone Complete
Echo Swamp (Normal) - Environment Contamination Zone Mission Monster
Echo Swamp (Normal) - Field Energy Station Mission Monster
Echo Swamp (Normal) - Ghost Marsh Mission Monster
Echo Swamp (Normal) - Hazy Swamp Mission Monster
Echo Swamp (Normal) - Kuiper Transport Route Mission Monster
Echo Swamp (Normal) - Muskeg Swamp: Vulgus Strategic Outpost Mission Monster
Echo Swamp (Normal) - Seed Vault Mission Monster
Echo Swamp (Normal) - The Chapel Mission Monster
Echo Swamp (Normal) - The Tree of Truth Mission Monster
Echo Swamp (Normal) - Traces of Colossi Interceptions Mission Monster
Echo Swamp (Normal) - Verdant Greenery Mission Monster
Echo Swamp (Normal) - Void Fusion Reactor - Echo Swamp Derelict Covert Mission Monster
Echo Swamp (Normal) - Void Fusion Reactor - Echo Swamp Muskeg Swamp Mission Monster
Intercept Battle: (Hard) Molten Fortress
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.

An Iron Will Basic Info & Effects

An Iron Will Basic Info
The First Descendant - An Iron Will.png An Iron Will Capacity 6
Socket Rutile
Class
The First Descendant - Descendant Icon.png Descendant
Effects
When Shield is at X%, DEF +X%.

Details Per Level

Lvl Effect Capacity Kuiper Shard Gold
0 When Shield is at 0%, DEF +32%. 6 - -
1 When Shield is at 0%, DEF +36.5%. 7 900 9000
2 When Shield is at 0%, DEF +41.5%. 8 2700 27000
3 When Shield is at 0%, DEF +47.9%. 9 6000 60000
4 When Shield is at 0%, DEF +55.5%. 10 12000 120000
5 When Shield is at 0%, DEF +64%. 11 22000 220000
6 When Shield is at 0%, DEF +74.3%. 12 39300 393000
7 When Shield is at 0%, DEF +85.1%. 13 67800 678000
8 When Shield is at 0%, DEF +97.3%. 14 114300 1143000
9 When Shield is at 0%, DEF +111.6%. 15 189300 1893000
10 When Shield is at 0%, DEF +128.3%. 16 309300 3093000

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