FTP, name this immortal super mutant enemy of the X-Men, who is served by Death, Famine, War, and Pestilence - his so-called "Four Horseman."
After he was rejected by his love Nephri, he turned against mankind.  He came to power by overthrowing the pharaoh Rama-Tut and would take a new name, forever abandoning En Sabah Nur.  In an alternate future he had planned to transfer his essence to his heir, Strye, before he died in combat, but in all worlds of the Marvel Universe he is a metamorph, capable of altering his shape at will.  It was he who transformed Angel into Archangel.  FTP, name this immortal super mutant enemy of the X-Men, who is served by Death, Famine, War, and Pestilence - his so-called "Four Horseman."
After he was rejected by his love Nephri, he turned against mankind.  
Apocalypse (accept En Sabah Nur before the name is mentioned)