Fafnir (Marvel Comics) entities is stopped when Thor agrees to go to Hel's realm willingly. Fafnir later reappears in the 2011 limited series "Avengers Prime" in the aftermath of the "Siege" storyline as, at first, an adversary then ally of Thor, Tony Stark and Steve Rogers with several legions of ogres and elves in battle against a Twilight Sword wielding Hela and her army. Fafnir was originally a normal man until transformed by the properties of a magical pool into a large dragon. Fafnir retains his intellect and speech, possesses superhuman strength and durability, and the ability to breathe fire and cast illusions.
Investigations into Germanic Mythology swam against the stream, but he clearly expressed that which has become an ever stronger certainty today: a large part of the myths of the Germanic tradition —and that is to say basically the Old Norse tradition—must be set back in a time when the undivided Proto-Indo-European people themselves created the vessel of their worldview in myths. There is no shortage of scholarly opinion and no consensus on Viktor Rydberg's works on Indo-European and Germanic mythology. Some scholars feel that his work is ingenious, while others feel the work is too speculative. One scholar expressed the opinion that "Rydberg's views"