Next, the Marvel Zombies attack a Skrull planet, only to encounter the Fantastic Four—consisting of Black Panther, Storm, the Thing and the Human Torch. It pleases the zombies so much that they attempt to capture the Fantastic Four and try to transport back to their fully populated reality, but the FF manage to escape. Luke Cage also has a role in Marvel Zombies 2, joining Spider-Man in fighting against the other Galactus as he realizes that their hunger has faded over time. His lost arm is replaced by a transplanted arm from an unknown being (possibly alien) and his lost lower half is also replaced with a cybernetic one. At the series conclusion, he is transported to another universe which also gets taken by the infection. Cage fights to defeat the hungry zombies of this reality, leading the converted Shi'ar against Earth, but is defeated and killed by the prime zombies of the new world. A different version of Power Man appears in the Ultimate Marvel universe as a member of the Defenders, although he is never referred to as "Luke Cage". In this universe, the Defenders consist of several people who want to be superheroes but have no useful superpowers, and appear to be more interested in the celebrity aspect of being heroes than actually doing anything heroic. This version originally never had any powers. However, in "", he and the Defenders all appear with powers, given to them by Loki. During the "Secret Wars" storyline, different versions of Luke Cage appear in the different Battleworld domains:       In a 2008 poll, Luke Cage was ranked as the 34th-greatest comic book character of all time by "Wizard" magazine. IGN also ranked Luke Cage as the 72nd-greatest comic book hero of all time stating that "Cage embodies much of what we love about Marvel's heroes", and 15th in their list of "The Top 50 Avengers" in 2012. In her analysis of the comics, Sharon Packer M.D. made connections between Cage's origin story and historical events taking place in the time of the comics' publication. Carl Lucas uses his newfound power to crash through the prison's cement barricades, he symbolically breaks through barriers that were once closed to him, similar to other black people of his era. Luke Cage's story has a distinct connection to unethical medical experiments; his comics presumably enhanced awareness of the Tuskegee syphilis experiments that made "New York Times" headlines in the very same month and year that Luke Cage debuted. Altman published a book on self-experimentation ethics, one of many texts discussing ethical breaches in medical experiments at that time, meaning that the Luke Cage stories likely picked up on the rhetoric on prison experiments during that time and tapped into opprobrium about ethics.