({J} can be paid by a mana produced by a source that could produce two or more diffenent types of mana.)

As Zephyrus the Great enters the battlefield, you may reveal your library to your opponent. If you library doesn't contain more than one copy of any nonland cards, search your library or outside of the game for a card with converted mana cost x, put it into your hand, then shuffle your library. You may spend mana as though it was mana of any colour to cast that spell. Add {x}.