Marvel Comics was a group of superhero comics created by Marvel Corporation, including the Avengers, Spiderman, Iron Man, Thor, Captain America, Black Widow, Hulk, Thor, and the Avengers. These comics were set in a fictional universe and told the story of superheroes protecting the earth and stopping evil forces. Marvel Comics had many fans around the world and were widely used in movies, TV series, games, and other forms of entertainment.
The Avengers originated in Marvel Comics. Marvel has developed a vast universe of characters and storylines, and the Avengers are a key part of it. Their adventures have been adapted into various forms of media, including movies and TV shows.
Captain Marvel is Carol Danvers. She gained her powers through an interaction with alien technology and has become a powerful hero in the Marvel universe.
I don't know of any Marvel novel or movie protagonist who can synthesize monsters. This could be a fictional plot or a fictional character related to other stories or characters.
I'm not sure exactly how many comics Sam Alexander is in. It depends on various factors like ongoing series, limited editions, and crossovers. But you could check dedicated comic databases or fan forums for more detailed info.