Immunotherapy: Using the Immune System to Treat Cancer. Scanning electron micrograph of a human T lymphocyte (also called a T cell) from the immune system of a healthy donor. Source: National Institute of Allergy and Infectious Diseases (NIAID).
This revelation mortifies Panther and he hands the Cube over to Mar-vel who leaves to help the Wakandans relocate to the Savage Land so that they can escape the frequent Wendigo attacks that keep occurring. On the way to the Savage Land, Black Panther is followed by the Wendigo.
The end-of-days scenario isn't new in the MCU, but what the movie's director does with it most definitely is. Black Panther is a fantasy film rooted in the here and now. Unlike other Marvel superheroes, T'Challa is a king, a real-life royal with a burden of responsibility.