This is a Thunder Cage build in The First Descendant. Read on to learn the Thunder Cage's best build, how to get Thunder Cage, its stats, how to fix the Thunder Cage Mounting bug, and more!

Best Thunder Cage Build

Substats Priority
・Firearm ATK ・Firearm Critical Hit Rate ・Weak Point Damage ・Recoil
Best Modules for Thunder Cage
Reload Insight	Reload Time Modifier +X%, Firearm Critical Hit Rate +X%
Bullet Rain	Fire Rate +X%, Firearm ATK +X%
Insight Support Ammo	Rounds per Magazine +X%, Firearm Critical Hit Rate +X%
Insight Focus	Firearm Critical Hit Rate +X%, Firearm Critical Hit Damage +X%
Sharpshooter	Firearm ATK +X%, Firearm Critical Hit Rate +X%
Better Concentration	Firearm Critical Hit Damage +X%
Expand General Magazine	Max General Rounds +X%
Better Insight	Firearm Critical Hit Rate +X%
Rifling Reinforcement	Firearm ATK +X%

Since the Thunder Cage is a submachine gun, you will face issues with high recoil and low ammo capacity. Despite that, the movement speed it provides allows you to close the distance! With that in mind, you can engage in short to mid-range skirmishes without recoil issues.

To address the low ammo capacity issue of the Thunder Cage, stacking magazine capacity upgrades alleviates that. Other than that, buff up the Thunder Cage's ATK and Critical Hit Rate, and you should have a weapon that will last you through hard mode.

How to Get Thunder Cage

Collect Research Materials

Research Cost and Required Mastery Rank

Go to Anais and Research the Weapon

Once you have the research materials, enough gold, and the required Mastery Rank, talk to Anais at Albion and select “Request Research”.

In the Weapons tab, select the weapon you want to research and select “Research Request” to start researching the weapon.

It will take 4 hours to research one ultimate weapon but you can research up to 5 ultimate weapons simultaneously!

What to Research at the Research Institute

Thunder Cage Basic Info & Stats

Basic Info

Thunder Cage Basic Info
Thunder Cage	Tier	Ultimate
	Type	Submachine Gun
	Ammo	General Rounds
Unique Ability
Overcharge: When defeating an enemy, the defeated enemy has a set chance to discharge Electric Shockwave which deals Additional Damage to nearby enemies.

Stats

The stats here are only at level 1.

How to Fix the Thunder Cage Mounting Bug

Re-equip the Weapon from Inventory

Thunder Cage Mounting is a weapon optimization that enhances the weapon when equipped as the main weapon. However, there's an ongoing bug causing this boost to be lost, with no current explanation for why it occurs.

If you encounter this issue, simply store the weapon back in your inventory and then re-equip it to regain the boost.

Thundercage Recommended Descendants

Descendant	Explanation
Bunny	Although the weapon has high recoil and low ammo capacity, the nature of Bunny's kit, she'll be engaging in short to mid-range fights to keep enemies within range of her skills, so recoil control won't be an issue.
Valby	Synergizes well with Laundry's debuffs.

The First Descendant Related Guides

List of All Weapons

Weapon Rounds

Weapon Rarities

Weapon Types

All Weapons Using General Rounds

Cygnus	Ominous Hound	Albinism	Hungry Hound
Magnus AA	Red Wolf	Millenium Frost	Rose of Aisha
New Beginning	Devil's Call	Blue Blood Bloomer	Alter Ego
Firefly	Rascal V-51	Unfinished Study	Lion of Blue Mane
Tamer	Caligo's Horn	Phantom Pain	Eternal Willpower
The Last Dagger	The Final Masterpiece	Thunder Cage	Python
Enduring Legacy	Albion Cavalry Gun	Fallen Hope	Divine Punishment