Two Heavenly Dragons
With the help of the perfectly timed opening of Kaora's exit door, Elric brought the Emperor over at the holy land of the Tunga - the hidden world of Light Elementals deep inside the Earth's surface.
The moment they entered was also the time when the exit door closed, thus trapping the Emperor inside the world of light Elementals.
The Emperor was still in a dazed state. In just a blink of an eye, he was punched a hundred times and forced him to this place without even resisting a bit. His body was still paralyzed by the Heavenly presence that assaulted him when emerged to devour Elric at the desert sand.
Not to mention, Elric seems to have overtaken the test of heaven, thus his normal attacks now possessed the heavenly essence.