Uvasa, Desert Pariah

+1: Untap target plains you control. Until your next turn, it becomes a 2/2 creature with haste and indestructible.
0: Whenever a white creature attacks this turn, you may search your library for a land card and put it into your hand.
-1: The next time a land would enter the battlefield this turn, you may exile target creature until that land leaves the battlefield.