Masters of the Universe in the MCU
https://www.reddit.com/r/movies/comments/alnuyw/masters_of_the_universe_in_the_mcu/
We will start with the stones putting emphasis on the Space stone.share
We will then jump to Masters of the Universe (starring Dolph) where a very Cosmic Being hands a human an unusual object.
Then to a very nervous DWARF engineer offers this as options for quantum travel.
Using this information we shall jump to Star Comics a subsidiary of Marvel from 1986-1987 and credited in the Masters of the Universe Motion Picture.
Here is a blatant example of Skeletor (deviant Chitauri faction?) using technology VERY similar to Heimdall in the MCU.
Here is an example of clear Chitauri inspired technology.