When Lex gets his hands on a bit of Clark's DNA, he is interested to see what he can use it for. The first couple experiments are harmless, but once Lex is forced to uncover Clark's greatest secret on his own. He is unsure of Clark's genuine nature, and with the last bit of the remaining DNA he has, creates something, he hopes will kill him. Something that looks exactly like Clark, but shares a not so friendly nature. One that makes Clark rethink his life in Smallville