Search your library for an instant card with converted mana cost 3, reveal it, and put it into your hand. Then repeat this process for instant cards with converted mana costs 2 and 1. Then shuffle your library.
10/1/2012 You don’t have to find any instant cards in your library, even if they are there.
10/1/2012 If a card in your library has in its mana cost, X is 0. For example, a card with mana cost has a converted mana cost of 1, and so on.