Thank you for your patience. I had to attend to somethings and verify somethings for you.
What you are seeing on the You-Tube Channel that you provided is what is called a Parody under copyright law.
A Parody is a form of commentary and criticism of copyrighted work. It makes fun of and mocks the original work.
A good example of Parody (other than the link you provided) is what Weird Al Yankovik does with popular songs. (If you don't know who Weird Al is look him up - its a good example and its very funny).
Parody falls under the category of "Fair Use" under the copyright law. Fair use is a legal concept under the law that allows other persons to use the copyrighted material of another persons without permission and without remuneration IF that use meets certain specific criteria.
There are a number of categories of Fair Use - commentary, criticism, education, etc. One of the most accepted and permitted Fair Use is Parody.
This article discusses Fair Use in more detail and I recommend it to you:
In regard to your question: "Are you able to make a you tube channel with superheroes like spiderman doing skits and teaching magic tricks and profit off of it?"
Perhaps, if you can design a work that meets the criteria of Fair Use you can. But Fair Use is a tricky concept. Only a court can tell you AFTER the Fact whether your use was permitted or not. Everyone else is just guessing.
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