Calling of Legends

Calling of Legends is every color spent to cast it. (If {w}{u}{u}{r}{g} is spent to cast it, it is white, blue, red, and green.)
Search your library for a legendary creature or planeswalker card that represents a Cardsmith and is the exact same colors as Calling of Legends, put it onto the battlefield, then shuffle your library and put Calling of Legends on top of it.