After Merlin understood the Law of Yggdraheim, he used those insights as a starting science. He used the vision inside it as a model and the “Spirit Alteration" and "Hand of the Sun and Moon" God's Techniques that had the power to turn rules into objects.
One was like a trick that created an image of the entire space into an illusory image as desired. And the other changed emptiness with rules to create an illusory creature with lifelike powers. They took after the Spirit Alteration God's Technique to transform the body and the Hand of the Sun and Moon God's Technique to turn the environment realistic.
Therefore, this God's Technique created completely realistic-looking events and had a real attack power that was no different from that of an illusion.
Merlin named this God's Technique “Divine Transformation!”