Afterwards , the Phoenix Egg went dormant and fell on Magneto seemingly killing him .
With his helmet destroyed revealing the miniature star in his head , Xorn battled Magneto ravaging the entire Institute , but vanished when he realized that Jean Grey was not alone inside the egg .
Afterwards , the Phoenix Egg went dormant and fell on Magneto seemingly killing Magneto .
With his helmet destroyed revealing the miniature star in his head , Xorn battled Magneto ravaging the entire Institute , but vanished when he realized that Jean Grey was not alone inside the egg .