There had always been a large number of sword boats. For the people in the spirit weapon world, it was not too difficult to make sword boats, so the number of sword plates had naturally increased.
These sword boats might not be very effective against large warships like the hundred-beast warship or the ghost king warship. Those large warships were very strong. Except for warships of the same level, small boats like the sword boat would be useless if they hit them. Even if the warship stood there for you to hit, you would only be injured in the end.
However, the opponents of the sword boats were not warships, but those ghosts. Moreover, the sword boats were protected by powerful shields with phantoms of beasts on them. In other words, these warships contained Soul Fragments of beasts.
