Mo Hua isn't worried about the situation on the island.
Firstly, in this operation, he was "borrowing power", relying on the Taoist Court's strength to eradicate these water bandits.
The Xia family is not yet his concern.
Another reason is because of the formation.
The formation on the island uses the formation principles of the Eight Gates and Eight Trigrams, with an exquisite design.
However, the Formation Master's skills were insufficient, and the solitary, deserted island offered limited conditions, resulting in a relatively crude formation.
The layout used the Eight Gates as a framework, but the internal Eight Trigrams Array was cut corners.
Though there are Eight Gates, there are no Eight Trigrams.
A complete Eight Trigrams Formation is very difficult to assemble.
Li Fire, Kan Water, and Gen Mountain are better, having commonalities with the usual Five Elements Formation, making them easier to learn.