Iron Shield

The Iron Shield is a durable defensive item that replaces the Wooden Shield in Oracle of Ages, Oracle of Seasons and Skyward Sword.

Oracle Series
The shield defends Link against some attacks that the L-1 Wooden Shield cannot, but it is not as potent as the L-3 Mirror Shield. Obtaining the Iron Shield is optional. Like all shields in these games, it can be stolen by Like Likes if they attack Link. If this happens, another Iron Shield can be purchased from a shop.

In Oracle of Ages, it can be obtained on Crescent Island. After the Tokay steal Link's items when he first arrives on their island, he must regain his arsenal one-by-one by speaking with each Tokay individually. One Tokay thief can be found in a cavern on the south edge of the island, which can only be reached by swimming. Instead of returning the Wooden Shield Link originally lost, this Tokay will instead return an upgraded Iron Shield. In Oracle of Seasons, Link can earn the Iron Shield by offering the Subrosian Smithy a piece of Hard Ore and a Wooden Shield.

In terms of functionality, this shield is similar to the Magical Shield of The Legend of Zelda and Red Shield of A Link to the Past.

Skyward Sword
The shield appears again in Skyward Sword and bears two symbols that resemble footprints, possibly those of a Loftbird.