Soul Cores have three types: 🔸 Feral 🔸 Phantom 🔸 Brute Matching types with your Guardian Spirit can enhance abilities and damage. Change types by using a Mortal Soul Core that's dropped by certain mobs: 1. Manage Soul Cores from the Shrine and select Soul Fusion. 2. Choose a Base Soul Core whose type you'd like to change. 3. Select Mortal Soul Core and choose Fusion Type.