Collective Voyage

Oracle Text

Join forces — Starting with you, each player may pay any amount of mana. Each player searches their library for up to X basic land cards, where X is the total amount of mana paid this way, puts them onto the battlefield tapped, then shuffles their library.

Card Rulings

9/22/2011 You may find any number of basic lands up to X, including zero. However, searching and shuffling your library is not optional.