Are you slow in the head?
Oda can do whatever he wants. That isn't evidence that, prior to the anime preview for Greenbull, his blade could be any color other than black. Oda's never introduced or drawn a sword that wasn't one of two colors: metallic grey or black.
Oda can do whatever he wants. That isn't evidence that, prior to the anime preview for Greenbull, his blade could be any color other than black. Oda's never introduced or drawn a sword that wasn't one of two colors: metallic grey or black.
So Shusui's blade doesn't have a bright red streak going through it? If he can do that, why can't he make Ryokugyu's blade dark green for example? There's little to no difference.