Antichrist is merely a biblical term. Alternatively, it can be said that one person's Christ is another person's Antichrist. It's entirely relative to the individual. It would be more fitting to label the concept simply the human manifestation of Satan for the purpose of a deeper and more meaningful exchange concerning the concept. If you want a vision of what someone who fit the theoretical bill could look like, it would be someone who has the intellect, skills, self belief, magnetism, resources, understanding, drive, and vision to be the one to rapidly bring about the ushering in of a new world created in Satan's figurative image, a renewed and lasting golden age of enlightenment unlike anything ever seen before in this world, an ultra advanced Utopia consisting of all human beings united as one, where human suffering is a thing of the past and joy and understanding are had by all, a world totally built upon the concept of rational self interest. The Antichrist would basically be the ultimate Satanist