Uncage the Menagerie

Oracle Text

Search your library for up to X creature cards with different names that each have converted mana cost X, reveal them, put them into your hand, then shuffle your library.

Card Rulings

7/14/2017 If you cast Uncage the Menagerie with X as 0, you’ll search your library and shuffle it, but you won’t be able to find any cards.
7/14/2017 For cards in your library with in their mana costs, X is considered to be 0.

Additional Information