The Sword Law's so-called all-out offense with no defense did not merely mean giving up his own defenses; it also included the operation of the Sword Rain Pool.
Even for a World Secret Domain conditioned by the Multistar Supreme herself, it was still an extremely difficult weapon for a Law Angel to use. To ensure Ash and the others could not break through the Sword Rain Pool, the Sword Law had at least eighty percent of his focus devoted to operating "World of Suffering," "Curtain of Sorrow," "Rain of Tears Coffin," and the Sword Rain Pool itself.
It was also because he could only use twenty percent of his focus that the female spellcasters had beaten him until he could not even fight back. But that did not prove anything. After all, "World of Suffering" and "Curtain of Sorrow" had likely reduced the female spellcasters' combat strength by more than eighty percent as well. If the Sword Law could not match them even while using a World Secret Domain, he was even more likely to lose without one.
But now the female spellcasters were all trapped inside the Water Coffins, and the only enemy left was Ash. Moreover, the Sword Law was completely certain that even if Ash found a loophole to escape, he would never leave the battlefield. So the Sword Law only needed to focus on "Rain of Tears Coffin"; the failed "Curtain of Sorrow" could simply be set aside, and "World of Suffering" could be left to run on its own.
With more than half his focus freed up all at once, the Sword Law could finally display his true Sword Art. More importantly... he could call upon divine spirits.
The Sword Net God of "World of Suffering," the Sword Art Divine Spirit of "Curtain of Sorrow,"