The way of fusing laws.
Just like his ability to fuse elements and produce a more powerful one, it was possible to comprehend a higher-order law by fusing its corresponding laws of a lower order.
This didn't necessarily mean that fusing laws would guarantee the production of the desired higher-order law, but the chances are there.
In normal circumstances, there was no way for Leon to understand the specific laws he needed to comprehend and fuse to replicate the power of creation.
However, he was lucky to catch a glimpse of creation through the help of the realm spirit's omniscience.
'Fire, life, wood, light, and even time… These were the main elements I managed to perceive from the transformation of True Grandmist Energy…' Leon mused.
'The fires of creation… the power of fusion… by heating minerals of separate elements to extreme temperatures, it was possible to weld them together and create something new…'