Half Evolution

With his entire structure from the physical to the soul, everything of him changed as they changed forms.

His physical body would suddenly become tens of meters and the next moment it would shrink to the size of an ant. Right now, his body had no stable shape as it was desperate for the correct form to fit in with the soul.

To create points where the soul and the physical structure overlap and combine the two of them. This process was called Syndyasmos by him which also meant combination in greek.

To create just a single overlapping point, the entire structure would change drastically as it would also drain the essence a lot. So monsters of high strength would spend hundreds of years going through this process while today, he would be trying to combine his soul and physical body at 10% all in one go. 

With his talent, he could barely complete this while not getting any severe injuries.