He-Man and the Masters of the Universe (1983)

S1E54 The Return of Granamyr

Granamyr reaches out to He-Man, who travels to Darksmoke with Man-At-Arms, eager to express his gratitude for Granamyr’s previous aid in saving his life (as seen in "The Dragon's Gift"). Granamyr reveals that a young dragon named Torm has fallen for a human princess named Lyra and wishes to transform into a human to propose. However, her father, King Brindle, has set forth a series of challenges that only a human can undertake. Granamyr requests He-Man's help to complete these trials. As He-Man faces the tests, he must also contend with the sinister sorcerer Zim, who desires Lyra for himself.