I dont understand why so many of you were jumping to the conclusion that he was trying to obtain a recipe for an artifact level item. Seems like he was attempting to proc a prototype level item from a green (name?). I agree with the very low proc chance for learning artifact level schematics but I feel like it stands to reason that the chance for prototype schematics could stand to come up a little bit seeing as how they dont elevate the current stats at all, nor are they the end all of gearing up, they're 3rd on that list.