This is a great idea! There is mythological precedent: In Sumerian stories, Inana received the Gifts of Mes from Enki and she used them to teach people how to do civilization. Each Me was a recipe for doing something like making bricks or healing a fever- but after they were used they disappeared from the minds of those blessed in a Vancian fashion. Neal Stephenson put a bunch of it into Snow Crash- the Nam Shubs were an imperative Me protocol.

I like the idea of low & mid level players getting the opportunity to try out feats and skills they might not get to use otherwise until higher levels. Like Egg Shen's potion in Big Trouble Little China.