Talk:Mercury Black/@comment-2601:340:4200:F950:4000:C323:DD52:19ED-20180104035436/@comment-27144409-20180104042328

Of course Mercury's prosthetics look less sophisticated. Ironwood is the only known general of the most advanced and militant kingdom in Remnant, and his top scientists were directed to make Yang's arm.

Just because something isn't as sophisticated, doesn't mean it can't do the job.