Talk:Mercury Black/@comment-120.156.38.101-20160104020608/@comment-190.218.41.34-20160104051036

To use prosthetics takes someone an immensely long amount of time, usually two to six months or something like that, so if you're saying it happened from one day to another, I find it hard to believe, however I do have a couple of theories regarding Mercury's mechanical prosthetics, one of them being that his father amputated Mercury's legs and then trained him until Mercury was unable to stand Marcus' behavior and finally killed his own father.

Other theories I believe have some circumstantial evidence to support them is that he amputated his legs by himself beforehand to eventually assassinate his father, which could explain why Marcus had to attack Mercury's legs from the thighs up, which would lead to the bloodied bandages since he have had to bandage his legs after amputating his legs and due to how sluggish he moves after meeting Cinder for the first time.

My other theory is that Mercury's legs were heavily-damaged by Marcus during his fight with him and when Cinder offered him to work for her maybe she promised him new, stronger legs that would never break or something like that to sway him to her side since due to the damage his normal legs sustained, he would never be able to use them as efficiently as before he got so heavily damaged by Marcus..