Many years later, the picture of the chocolate frog showed: Aaron Custer, the greatest magic scholar of all time. His widely known contributions include: using transformation to create the first 'artificial intelligence' in the wizarding world; published various The far-reaching potion has created many magical creations that are still playing a huge role today; he has led the changes in the magical world many times; he is the most outstanding dueling master in the 20th century, proficient in fighting, good at swordsmanship, and good at using Thomson's Death Curse. ;…
"Excuse me, why didn't you add your contribution to the fight against the dark forces in the picture? Professor Custer." Aaron shrugged and said indifferently: "That's irrelevant. My wand points to It's the end of magic, and it only occasionally hits some noseless weirdos." (Note: Starting from Harry's second year, the protagonist is the Potions Professor)