In ancient times, iron was believed to be the life-blood of the earth. Smelting, tempering, and forging with fire and water - and possessing an innate connection to the world around them - earth pony smiths manufacture crafts of steel and metal of esteemed quality.
This character is kind of a badass in "The Archer and the Smith" [link]. It's an awesome one-shot with a mysterious and fairly complex background that paces itself nicely. Just to let you know.
Is that her?