Malignant Heart is one of the Boss Trophies in Diablo 4 that was previously a Lair Boss Key but has changed since Season 13 updates. This Boss Trophy is tied to the Echo of Varshan, who players may challenge within the Malignant Burrow for a chance to obtain it. While defeating Varshan is one of … Continue reading Diablo 4: How to Get Malignant Heart (Boss Trophy)