Diablo 4 Season 1 is based on the Malignant theme which players will witness many new challenges, such as the Malignant Tunnels and Malignant Hearts. Malignant enemies have taken over the Sanctuary, and defeating them will drop loot with powerful buffs. Among other things, crafting the Malignant Invokers is a key part of collecting Malignant Hearts in Season 1. As a result, progression...