Soul of the Malevolent
Soul of the Malevolent is a spell in the WoW Forever client.
Permanently imbue your shoulders with the Soul of the Malevolent: Periodic damage from your Shadowflame, Unstable Affliction, and Curse of Agony spells and damage done by your Felguard have a 4% chance to grant the Shadow Trance effect.
Use on: shoulders.
Data from the WoW Forever client, build 1.60.1.70862, extracted .