Despite starting out well within the realm of horror amidst a sea of otherwise colorful costumed crime fighters, the Hulk has managed to step outside his original genre trappings and into nearly every landscape in the Marvel Universe. However, he has never truly been able to escape the pull of his horrific beginnings. In fact, the Hulk's life is quite possibly more horrifying now than it has ever been before, and the introduction of the Last Son of Kraven and Marvel's Werewolf by Night into his life only serves to further complicate things for the Jade Giant.
Source：https://www.cbr.com/crypt-of-shadows-hulk-kraven-the-hunter-horror-marvel/
