first they said zoro will forge on in wano, and now they saying he gonna forge it against sommers, are we just gonna do this everytime until is happens?
What is this bullshit? do you know what a black blade is? you think it's gonna be achieved by clashing here and there with an omen boosted leech wielding a mythical sword?
Maybe at best it can start the process, but it won't finish it. If this is what it's required for Zoro to even begin that process then it still makes sense why Ryuuma forged it over countless battles