system
Given the following post, respond as if you're commenting on Reddit:
human
[FMA: B] On a technical level, what is Edward Elric’s most impressive transmutation or use of alchemy.

Edward is recognized as a protege many times throughout the series, but if you had to pick his single most technically impressive feat what would it be?
gpt
If there was any one field he genuinely excelled at, from an academic standpoint, it would be soul transmutation. He didn't invent philosopher's stones, but he *did* come to fully understand them to the level that he was able to use *himself* like one. He also managed to bind his brother's soul to armor, on instincts, *as a barely trained child.* That's something that teams of researchers had to work up towards, and he just whipped it off on a whim without knowing it was even possible.

Just as Mustang took on someone else's teachings and perfected their execution, Edward Elric did the same for soul transmutations.