The 10 Most Awesome Moments In Walter Simonson's 'Thor' - ComicsAlliance | Comic book culture, news, humor, commentary, and reviews: See, like his mythological counterpart, Marvel's Balder was once killed and sent to Hel, where he was confronted with everyone he had ever killed -- and as the greatest warrior of Asgard, he killed a lot of people. And not only that, in order to return to the realm of the living, he had to kill them all again. And as he later tells Thor, when he left Hel, he didn't walk out. He swam in an ocean of blood.