text: A song about this character by Swedish band Amon Amarth tells of this character's final battle before he is fated to die.
full_question: A song about this character by Swedish band Amon Amarth tells of this character's final battle before he is fated to die. However, before this character dies, he is fated to kill his final opponent. After defeating the opponent, this character will walk nine paces before dying. Who is this character, fated to kill and be killed by the Midgard Serpent?
first_sentence: A song about this character by Swedish band Amon Amarth tells of this character's final battle before he is fated to die.