Diablo 4 Season 1 has arrived, offering up new items and quests for players that roll a new character. The big addition this season is Malignant Hearts, which operate like unique and more powerful gems. The new season also brought with it a new balance update, which introduced character nerfs across the board, leading to some backlash from the community. Another new feature is the Seasonal Journey, which, like in Diablo 3, gives players a series of tasks to complete in the new season, offering a variety of rewards like materials and Aspects for completing each chapter. Here's what you need to do to complete each season and what you earn for doing so.