Library of Philosophies

Cards in your library have Scrycast {x}{u}{u}
where X is eaqual to the cards converted mana
cost. (If you see this card while scrying, you may
reveal it and cast it by paying {x}{u}{u}.)
{t}, {1}{u}: Create a Book token. (It's an artifact
with "{t}, Sacrifice this artifact: Scry 2.")