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.
RRG Fafnir 2 40% of the span had dihedral. Tapered ailerons, their chord increasing outwards, occupied all the trailing edge of the outer panels. The Fafnir 2's fuselage was carefully streamlined with a ply skin and had an underlying oval cross section, but the requirement to produce a camber form which blended into the wing made the detailed shaping complex and time-consuming to build. Close to the root, the wing-fuselage extended well ahead and further behind the wing. The tail was conventional, with fabric-covered control surfaces. The fin was ply-covered and more substantial than on the earlier Fafnir, reaching to the top of