Katarina when she fights with her sword while using the Laws, what she honed is not only her control over the Laws of the world but also imbuing the Laws onto her body and her attack
It makes her attack not only more lethal and dangerous, but also mysterious and transcend normal limitation of an attack.
Unlike him who had thirteen Laws and he practiced it equally, Katarina took the opposite way. If he walks the perfection path, then the path that Katarina took is the extreme path.
For him to walk the path of perfection, he had to create thirteen disk, suppresses his own breakthrough and when he finally creates thirteen disk during the Disk Formation realm, he could summon the Supremacy Stairway.
When he did that, the whole world had seen him walking step from the Heavens. That day when he walks the Supremacy Stairway, there were steps from the Heaven coming down from the Heavens
