American comics: Concept gods, starting from God rewards hard work

Aaron traveled to the Marvel world and became an ordinary member of the Aesir.
During a magic training, you can awaken your talent for hard work, and your ability can be infinitely improved by continuous training.
Even the most common magic can eventually be promoted to a concept.
"You have practiced meditation seriously and gained a lot...upgraded to energy absorption..."
"You have carefully performed energy absorption and gained a lot... Upgraded to concept devouring..."
"You cast illusion magic carefully once and gained a lot...upgraded to materialization magic..."
"You performed a materialization magic seriously and gained a lot. It was upgraded to concept creation..."
......
At this point, Aaron went from being an ordinary Asgardian to becoming an almighty god who masters countless concepts!