However, the idea that Zoro could potentially use Wado (not Enma, that's key because Zoro has had it for far longer and Ame also cut Kaido, so Enma's capability to is not exactly unique), kill Kaido, and turn the blade black could have additional merit. Zoro, a possible Shimotsuki, using his other Shimotsuki forged blade (technically Enma's real sibling) after 10+ years to "Ryuuma" Kaido could actually be a great thing. Kawamatsu would finally realize Zoro wasn't crazy about Ryuuma. Tengu may actually gift Zoro Nidai to upgrade his Sandai by the end of the arc. Zoro could also potentially "parallel" Momo in terms of both characters killing the monsters of Wano, with Momo using Ame for this exact reason against Orochi.