To make it easier to acquire Jewelry pieces with the sockets you want, Blizzard has enabled trade of these items between players. Also, you can only slot Malignant Hearts into pieces of Jewelry with a matching socket color. Malignant Monsters have a glow that matches the colors of these Malignant Heart types, making it easy to tell which heart they will drop when defeated. Provides very powerful and unique effects.

Wrathful Heart (Black): The rarest of all Malignant Hearts.Dropped by Devious Malignant Monsters or crafted at Cormond's wagon. Devious Heart (Pink): Hearts that provide utility of some sort, and are procced by specific conditions.Dropped by Brutal Malignant Monsters or crafted at Cormond's wagon.

Brutal Heart (Blue): Hearts that provide a bonus to your defensive capabilities.

Dropped by Vicious Malignant Monsters or crafted at Cormond's wagon.

Vicious Heart (Orange): Hearts that provide a bonus to offensive power.

There are four distinct categories of Malignant Hearts, with each one giving players a different type of bonus when socketed into pieces of Jewelry. Completing Malignant Tunnels with Malignant Invokers is a good way to farm for specific hearts.

Diablo 3 icy veins barbarian