He-Man's story involved Prince Adam using the power of Grayskull to become the mighty He-Man and engage in epic battles. It was filled with adventure, magic, and the struggle to keep Eternia safe from the clutches of Skeletor and his evil plans.
Definitely not. 'He-Man' has nothing to do with Marvel Comics. It has its own distinct brand and fan base that are separate from anything Marvel-related.
I'm not sure which novel you're referring to because you didn't provide a specific title or author. If you can provide more information, I will try my best to answer your questions.
A generation of heroes usually referred to a person or an organization that had made great achievements in Chinese history and stood out in their era. However, the answer to this question depended on the definition of a generation of heroes.
If it was referring to the characters of the Three Kingdoms period like Cao Cao, Liu Bei, and Sun Quan, they had indeed made great achievements in history and were widely regarded as a generation of heroes.
However, if it was referring to the characters of other periods, such as the generation of heroes in modern society, it would require specific analysis.