Lanayru (Skyward Sword)

The Thunder Dragon is a character from The Legend of Zelda: Skyward Sword, one of the three Dragons who oversee Hyrule. He is a large, dragon-like being who watches over the Lanayru Gorge, having been tasked by Hylia. When Link first finds him, he is ill, and cannot teach Link the Song of the Hero. He tells Link that the robots were worried about him, so they planted a seedling from the Tree of Life in the Gorge. However, the seed would not grow. After getting the fruit from the Tree of Life, Link returns to the Thunder Dragon to heal him, and to learn the Song of the Hero.