Feitiço
Procure em seu grimório até X cards de criatura com nomes diferentes que tenham custo de mana convertido X, revele-os, coloque-os em sua mão e depois embaralhe seu grimório.
 
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.
 
For cards in your library with  in their mana costs, X is considered to be 0.
 in their mana costs, X is considered to be 0.