Fire Medallion

The Fire Medallion is an item in The Legend of Zelda: Ocarina of Time.

In-game
The medallion is a red, circular medal with a flame emblazoned on it. It is rewarded to Link by Darunia, the Fire Sage, after completing the Fire Temple, and its boss, Volvagia. However, it has no known purposes besides proving Link's defeat of Volvagia, though some have theorized it may have originally had powers that could aid Link in-game. Darunia says it is a token of their friendship and bond as brothers.