Iron Shield

One of the heavier shields. It is lighter than the bronze shield, and was first used on the battlefield by the Grandshelt Kingdom. At the time, iron was a much more difficult and costly material to acquire than bronze for making shields, and while the neighboring countries refused to increase their war expenditures, the kingdom took this opportunity to place iron shield at the front lines of its army to continue gaining territory. As a result, the kingdom grew even larger.
Final Fantasy Brave Exvius description

Iron Shield (アイアンシールド, Aian Shīrudo?), also known as Iron, is a recurring shield in the series. It is a low-ranked shield that provides minimal defenses and no special bonuses.

Appearances

Final Fantasy

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A shield wrought from iron.
Description

Iron Shield is a low-ranked shield that provides 4 Defense. It can be bought for 100 gil (80 in Easy mode) at Elfheim or found at Castle Cornelia. It can be equipped by the Warrior, Knight, and Ninja classes.

Final Fantasy IV

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Shield of iron.
Description

Iron Shield is the weakest shield, providing 1 Defense and 20 Evasion. It is initially equipped on Kain, and can be bought for 100 gil at Agart. In the 3D remakes, it also offers immunity to Blind.

Final Fantasy IV: The After Years

Template:Sideicon Iron Shield is a low-ranked shield, now providing 2 Defense, 1 Magic Defense, 22% Evasion, and 1% Magic Evasion. It it initially equipped on Ceodore, and can be bought for 600 gil at Mist, Kaipo, Damcyan, and Dwarven Castle or found in the Dwarven Castle (Rydia's Tale). It can be equipped by Cecil, Ceodore, Kain, Cid, and Golbez.