Xiang Yu focused his creation domain on the crystal formations and dove straight into their atomic structure.
With his immortal grade blacksmithing, he already had the general structure of the material he was trying to make and somewhat understood how crystal formations got to that point naturally. Now all he had to do was speed up that process.
Every single atom had to be moved into the right spot and pushed through the same growth process it would go through naturally over years.
This was way harder than he thought it would be.
Each atom needed his full attention, and trying to control millions of them at the same time was making his head hurt. His creation domain let him mess with matter at this level, but keeping track of everything while still managing his creation domain that made him always aware of every atom within it was almost impossible.
