It looks like both arms are flesh and blood, versus one being bionic/techno-organic. Wonder why? This is supposed to be a younger version of Cable, right? Not Nate Grey? Maybe he’s using his “synth skin” that he had back in the day, where he could make his metal arm look like flesh?
Regardless, now that he’s mastered control of his T-O and it looks all Transmode virus and “Warlock-like”, I would think he could make his arm look normal easily if he wanted to. Wonder why he doesn’t?