I'm making this thread to try and get around the difficulties I had with other matches with Meruem, specifically his Ren which causes intense fear, madness and potentially death. This was the problem that was faced with Luffy. However, in this case, I believe that Zoro is a better candidate for resisting Ren's effects for a few reasons. One, Zoro has his own aura which is capable of instilling fear and paralysis into his opponents, as well as create visible illusions which were capable of striking fear into experienced opponents such as Kaku and Monet. Meruem doesn't have any resistance to this in his profile either. In addition, Ren needs to be surrounding the opponent for it to properly work, but in this case, Zoro has been shown to generate his own aura which could shield him from Meruem's Ren, so even if he used it, Zoro could just utilize his Haki to protect himself from its effects, and unlike Meruem, Zoro has resistance to fear manipulation, which could allow him to remain composed enough to activate his aura.