Advanced Fusion technique, otherwise known as the Soul Amalgamation is an ancient sealing technique where two users will be linked by their soul. It was now nothing but a lost method, only being mentioned in the books.
The Fusion skill card that is displayed by Azzy and 9-yr-old Flora was actually a watered-down version of Soul Fusion.
So, what is this technique that drew the curiosity from someone like Leah?
This special method will not just let them fuse the skill cards but also make the two users combine their attributes and soul skills, increasing their damage output by a whole realm.
And once mastered, even the Arcana of two users could temporarily merge; forming a new beast with both of their skill sets, and letting the two users share each of their soul power.
However, the Reaper was aware of the major drawbacks.
