Call to adventure: This is the journey of Erik Killmonger. It all started by the death of his father, who is the prince of Wakanda in which was his call to adventure. In order to avenge his father
Meeting the Mentor:He spent most of his life assisting Ulysses Klaw in stealing vibranium weapons and selling it across the world. Klaw was like a mentor to Killmonger because he looked out for him and guided him.
Crossing the Threshold: After serving Klaw for a while Killmonger revealed the secret that he is wakandain, and with that he kills Klaw and crosses the threshold between the real world and Wakanda. Here he will face who he is as a true Wakandain.
The Ordeal: After crossing the Threshold and facing a few trials, Killmonger faces his Ordeal where he faces T'Challa the son of the same man who had killed his father, and the king of Wakanda. Of course Killmonger wanted to get his revenge so he "killed" T'Challa
The road back: On the road back Killmonger becomes king after killing T'Challa. His first order was to deliver all of the vibranium weapons and Wakandas secrets across the world, which is against the Wakandian way. He also becomes the Black Panther by taking the heart shaped herb to give him the power of the Black Panther.
Return with the Elixir: Soon T'Challa is reborn and challenges Killmonger for the throne and they both fight. In the end T'Challa stabs Killmonger and says that he can save him but Killmonger said that he would rather die as a hero to the eyes of not many than live as a shadow of everybody. This is the return of the elixir part of Killmongers journey where Killmonger acepts the same gift that he has brought to many, Death.