Season 9 of Diablo 4 is bringing an exciting new challenge to the game’s endgame content: the cheap Diablo 4 GoldNightmare Upgrade dungeon. This high-stakes dungeon is sure to keep players on the edge of their seats, as they battle through waves of enemies and make their way toward the final boss fight with Astaroth, one of the most feared demons in all of Sanctuary. The Nightmare Upgrade...