As his training progressed, the dark clone surpassed all those who had come before him he was able to store Skywalker's memories independent from his own and suppress the dead man's feelings. Within the cloning facilities of Kamino, several failures were produced before the Dark Lord of the Sith succeeded in creating a clone of the deceased apprentice that was able to overcome his template's emotions and submit himself entirely to the dark side of the Force. Following Vader's death, Starkiller embarked on a quest to create a perfect, obedient duplicate of the man to take as an apprentice. The dark clone of Anakin Skywalker, who later take on both of the names of his genetic template, first Anakin Skywalker, and later on Darth Vader, was a human male cloned by Starkiller from the genetic material of his former master, Darth Vader. You have inherited his strengths, but also his weaknesses. You were cast from the mold of a dead man.