One new tease from Marvel Studios could hint at the debut of a terrifying superhero team in the MCU following 2022's Werewolf by Night. The MCU's Phase 4 is considered by some to be the most light-hearted era of Marvel Studios' shared franchise, but the MCU also dipped its toes into the world of horror during Phase 4, experimenting with projects such as Michael Giacchino's Werewolf by Night and Sam Raimi's Doctor Strange in the Multiverse of Madness. The former, Marvel Studios' first Special Presentation for Disney+, introduced several characters from Marvel Comics' horror roster, setting the stage for some thrilling future stories in the MCU.
https://screenrant.com/mcu-tease-legion-of-monsters-team-setup/