Invasion of Alara
Battle - Siege
When Invasion of Alara enters the battlefield, exile cards from the top of your library until you exile two nonland cards with mana value 4 or less. You may cast one of those two cards without paying its mana cost. Put one of them into your hand. Then put the other cards exiled this way on the bottom of your library in a random order.
not legal Legacy
not legal Vintage
not legal Modern
not legal Standard
not legal Pioneer
not legal Pauper
not legal Commander
not legal Frontier