Primal Growth

Oracle Text

Kicker—Sacrifice a creature. (You may sacrifice a creature in addition to any other costs as you cast this spell.)

Search your library for a basic land card, put that card onto the battlefield, then shuffle your library. If Primal Growth was kicked, instead search your library for up to two basic land cards, put them onto the battlefield, then shuffle your library.

Card Rulings

10/4/2004 You may choose not to find any basic lands when you search.
10/4/2004 Because the “search” requires you to find a card with certain characteristics, you don’t have to find the card if you don’t want to.