In Norse myth we have two stories involving the theft of a substance that confers a magical benefit to the user. Both involve the thief taking the form of an eagle. Both involve a pursuit with a god and a giant. Of course, the two myths have very different results, although in both cases the final score is Aesir 1, Jotunar 0.
One is the myth of the giant Þiazi kidnapping Iðunn to get the apples of immortality, the other is the story of how Oðin stole the mead of poetry from the giant Suttungr.