Warning: Contains spoilers for Avengers Assemble #1! Marvel is setting the stage for one MCU Star to be the next leader of the Avengers. For Shang-Chi, his journey from cult hero to MCU icon has been a long one, but now it has culminated with a place alongside Earth’s mightiest heroes. in Avengers Assemble #1, Shang-Chi joins Captain America’s new Avengers Emergency Response Squad, and quickly makes a case to be the team’s leader. Avengers Assemble #1 was written by Steve Orlando and drawn by Cory Smith. Shang-Chi arrives at the Avengers mansion, joined by Photon and the Wasp. No…