The Marvel Cinematic Universe has been on shaky ground since Avengers: Endgame, offering some unappreciated gems right alongside some that deserved their drubbing. So, Kevin Feige and co decided to shake things up further by bringing back Robert Downey Jr. as Doctor Doom for Avengers: Doomsday. It left people hyped up for his inevitable meeting with Spider-Man, as well as with his true rival, Reed Richards of The Fantastic Four.