Text (CF+errata): Exile target creature. Its controller may search his or her library for a basic land card, put that card onto the battlefield tapped, then shuffle his or her library. [Oracle 2009/07/08]
If the targeted creature is not a legal target at resolution, this spell is countered. [Conflux FAQ 2008/12/16]
The player does not have to find a land card even if they have one in their library. See Rule 701.14. [D'Angelo 2009/02/07]
