Sorcery, 2B (3) Search your library for up to three creature cards and put them into your graveyard. Then shuffle your library.1 "Is it worse to walk while dead, or to be buried alive? I have witnessed both." -Crovax
Illus. Brian Horton
You can look in your library and then choose to find any number from zero to three creatures after you look at it. [D'Angelo 2000/12/07]
You do not have to find all three creature cards if you do not want to. You can choose to find zero, one, or two instead. See Rule G19.4. [D'Angelo 2001/07/14]