Blizzard Reveals Diablo 4’s Malignant Heart Types for Season 1 Diablo 4 is launching its first season on July 20, and players can now discover what each Malignant Heart kind does, as well as where to locate them. Diablo four is ready to debut its first season on July 20, and to higher prepare the community, Blizzard has found out the different Malignant Heart types and where to farm them....