The Gorosei are the only Devil Fruit users who can swim
What is the greatest law in the One Piece universe? Devil Fruit users can’t swim, they sink. But, why is that? Let’s ask good old (soon to be dead) Dr. Vegapunk, the Stella himself.
“The earn the ire of Mother Nature… the sea itself. Such blasphemy cannot go unchecked.
So, more or less, those who used Devil Fruits are unable to swim because nature, the sea itself, is rejecting them.
Who controls the seas? Imu, the ruler of the world.
So… if that’s the case, why on earth would Imu, the ruler of the sea, curse their own subordinates, who are directly loyal to them, the Gorosei?
They wouldn’t, and this is what makes the Gorosei VERY overpowered: they can swim. I think the freakshow magical circle might have something to do with this. Like, the Gorosei are being summoned in their true form, without the weaknesses and restrictions other Devil Fruit users use.
I fully expect someone to shoot Saturn with a bubble gun, then be confused when nothing happens, and the Seastone Bubbles fail to weaken him. Even better would Saturn being kicked into the sea, only to climb out of it like a damn Kaiju. Nobody can stop Saturn.
*by CoC: Color of Clowns
